Sunday, March 4, 2012

Proctocream HC




Generic Name: hydrocortisone

Dosage Form: cream
proctocream® HC 2.5%

(hydrocortisone cream, USP 2.5%)

Rx only topical 6-141-30-01-0510

Rev 05/10

DESCRIPTION: proctocream®•HC 2.5% contains Hydrocortisone [Pregn-4-ene-3,20-dione, 11,17,21-trihydroxy-, (11β-] with the molecular formula C21H30O5 and a molecular weight of 362.47, CAS 50-23-7. Each gram for topical administration contains: 25 mg of hydrocortisone in a base of glyceryl monostearate. polyoxyl 40 stearate, glycerin, paraffin, stearyl alcohol, isopropyl palmitate, sorbitan monostearate, benzyl alcohol, potassium sorbate, lactic acid and purified water.





CLINICAL PHARMACOLOGY: Topical corticosteroids share anti-inflammatory, anti-pruritic and vasoconstrictive actions.

The mechanism of anti-inflammatory activity of the topical corticosteroids is unclear. Various laboratory methods, including vasoconstrictor assays, are used to compare and predict potencies and/or clinical efficacies of the topical corticosteroids. There is some evidence to suggest that a recognizable correlation exists between vasoconstrictor potency and therapeutic efficacy in man.


Pharmacokinetics: The extent of percutaneous absorption of topical corticosteroids is determined by many factors including the vehicle, the integrity of the epidermal barrier, and the use of occlusive dressings.

Topical corticosteroids can be absorbed from normal intact skin. Inflammation and/or other disease processes in the skin increase percutaneous absorption.

Occlusive dressings substantially increase the percutaneous absorption of topical corticosteroids. Thus occlusive dressings may be a valuable therapeutic adjunct for treatment of resistance dermatoses (See DOSAGE AND ADMINISTRATION).

Once absorbed through the skin, topical corticosteroids are handles through pharmacokinetic pathways similar to systemically administered corticosteroids. Corticosteroids are bound to plasma proteins in varying degrees. Corticosteroids are metabolized primarily in the liver and are then excreted by the kidneys. Some of the topical corticosteroids and their metabolites are also excreted into the bile.

INDICATIONS AND USAGE: Topical corticosteroids are indicated for the relief of the inflammatory and pruritic manifestations of corticosteroid-responsive dermatoses.



CONTRAINDICATIONS: Topical corticosteroids are contraindicated in those patients with a history of hypersensitivity to any of the components of the preparation.



PRECAUTIONS: General: Systemic absorption of topical corticosteroids has produced reversible hypothalamic-pituitary-adrenal (HPA) axis suppression, manifestations of Cushing’s syndrome, hyperglycemia, and glucosuria in some patients.

Conditions which augment systemic absorption include the application of the more potent steroids, use over large surface areas, prolonged use, and the addition of occlusive dressings.

Therefore, patients receiving a large dose of a potent topical steroid applied to a large surface area or under an occlusive dressing should be evaluated periodically for evidence of HPA axis suppression by using the urinary free cortisol and ACTH stimulation tests. If HPA axis suppression is noted, an attempt should be made to withdraw the drug, to reduce the frequency of application, or to substitute a less potent steroid.

Recovery of HPA axis function is generally prompt and complete upon discontinuation of the drug. Infrequently, signs and symptoms of steroid withdrawal may occur, requiring supplemental systemic corticosteroids.

Children may absorb proportionally larger amounts of topical corticosteroids and thus be more susceptible to systemic toxicity (See PRECAUTIONS – Pediatric Use).

If irritation develops, topical corticosteroids should be discontinued and appropriate therapy instituted.

In the presence of dermatological infections, the use of an appropriate antifungal or antibacterial agent should be instituted. If a favorable response does not occur promptly, the corticosteroid should be discontinued until the infection has been adequately controlled.



Information for the Patient: Patients using topical corticosteroids should receive the following information and instructions:


  1. This medication is to be used as directed by the physician. It is for external use only. Avoid contact with the eyes.

  2. Patients should be advised not to use this medication for any disorder other than for which it was prescribed.

  3. The treated skin area should not be bandaged or otherwise covered or wrapped so as to be occlusive unless directed by the physician.

  4. Patients should report any signs of local adverse reactions especially under occlusive dressing.

  5. Parents of pediatric patients should be advised not to use tight-fitting diapers or plastic pants on a child being treated in the diaper area, as these garments may constitute occlusive dressings.


Laboratory tests: The following tests may be helpful in evaluating HPA axis suppression: Urinary free cortisol test; ACTH stimulation test.



Carcinogenesis, Mutagenesis, Impairment of Fertility: Long-term animal studies have not been performed to evaluate the carcinogenic potential or the effect on fertility of topical corticosteroids. Studies to determine mutagenicity with prednisolone and hydrocortisone have revealed negative results.



Pregnancy: Teratogenic Effects – Pregnancy Category C. Corticosteroids are generally teratogenic in laboratory animals when administered systemically at relatively low dosage levels. The more potent corticosteroids have been shown to be teratogenic after dermal application in laboratory animals. There are no adequate and well-controlled studies in pregnant women on teratogenic effects from topically applied corticosteroids. Therefore, topical corticosteroids should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus. Drugs of this class should not be used extensively on pregnant patients, in large amounts, or for prolonged periods of time.



Nursing Mothers: It is not known whether topical administration of corticosteroids could result in sufficient systemic absorption to produce detectable quantities in breast milk. Systemically administered corticosteroids are secreted into breast milk in quantities not likely to have a deleterious effect on the infant. Nevertheless, caution should be exercised when topical corticosteroids are administered to a nursing woman.



Pediatric Use: Pediatric patients may demonstrate greater susceptibility to topical corticosteroid-induced hypothalamic-pituitary-adrenal (HPA) axis suppression and Cushing’s syndrome than mature patients because of a larger skin surface area to body weight ratio.

Hypothalamic-pituitary-adrenal (HPA) axis suppression, Cushing’s syndrome, and intracranial hypertension have been reported in pediatric patients receiving topical corticosteroids. Manifestations of adrenal suppression in pediatric patients include linear growth retardation, delayed weight gain, low plasma cortisol levels, and absence of response to ACTH stimulation. Manifestations of intracranial hypertension include bulging fontanelles, headaches, and bilateral papilledema.

Administration of topical corticosteroids to pediatric patients should be limited to the least amount compatible with an effective therapeutic regimen. Chronic corticosteroid therapy may interfere with the growth and development of pediatric patients.



ADVERSE REACTIONS: The following local adverse reactions are reported infrequently with topical corticosteroids, but may occur more frequently with the use of occlusive dressings. These reactions are listed in an approximate decreasing order of occurrence: burning, itching, irritation, dryness, folliculitis, hypertrichosis, acneiform eruptions, hypopigmentation, perioral dermatitis, allergic contact dermatitis, maceration of the skin, secondary infection, skin atrophy, striae and miliaria.



OVERDOSAGE: Topically applied corticosteroids can be absorbed in sufficient amounts to produce systemic effects (See PRECAUTIONS).



DOSAGE AND ADMINISTRATION: Apply to the affected area as a thin film 2 to 4 times daily depending on the severity of the condition.

Occlusive dressings may be used for the management of psoriasis or recalcitrant conditions.

If an infection develops, the use of occlusive dressings should be discontinued and appropriate antimicrobial therapy instituted.



HOW SUPPLIED: proctocream®•HC 2.5% (hydrocortisone cream USP, 2.5%) is supplied in 30 gram tubes.

                             30 g                              NDC 68220-141-30

Store at 25°C (77°F); excursions permitted to 15-30°C (59-86°F) [see USP Controlled Room Temperature].

Manufactured for:

ALAVEN Pharmaceutical LLC

Marietta, GA 30062, USA                                                                                                                  6 - 141 - 30 - 01 - 0510

By: Nycomed US Inc.                                                                                                                                     Rev. 05/10

Melville, New York 11747                                                                                                               I5607 ALAVEN R5/10

For Medical Inquiries, call 1-888-317-0001                                                                                                       #49





Principal Display Panel – 30 g Tube


NDC 68220-141-30

proctocream® HC 2.5%

(hydrocortisone cream, USP 2.5%)

30 grams net wt                   ALAVEN®


Pharmaceutical LLC

Rx only


KEEP OUT OF REACH OF CHILDREN            FOR EXTERNAL USE ONLY            NOT FOR OPHTHALMIC USE

SEE CRIMP OF TUBE FOR LOT NUMBER AND EXPIRATION DATE.

SEE PACKAGE INSERT FOR FULL PRESCRIBING INFORMATION.


DESCRIPTION: proctocream® HC 2.5% is a topical preparation containing 25 mg of hydrocortisone per gram in a base of glyceryl monostearate, polyoxyl 40 stearate, glycerin, paraffin, stearyl alcohol, isopropyl palmitate, sorbitan monostearate, benzyl alcohol, potassium sorbate, lactic acid and purified water.

DIRECTIONS: 2 to 4 APPLICATIONS DAILY.                                                                  6 - 141 - 30 - 09 - 0810

IMPORTANT: Do not use if seal has been punctured or is not visible.                              W5607 R8/10

TO OPEN: Use cap to puncture seal.

Store at 25°C (77°F); excursions 15-30°C (59-86°F)

Manufactured for:                                            By:

ALAVEN Pharmaceutical LLC                      Nycomed US Inc.

Marietta, GA 30062, USA                              Melville, New York 11747









PROCTOCREAM  HC
hydrocortisone  cream










Product Information
Product TypeHUMAN PRESCRIPTION DRUGNDC Product Code (Source)68220-141
Route of AdministrationTOPICALDEA Schedule    








Active Ingredient/Active Moiety
Ingredient NameBasis of StrengthStrength
HYDROCORTISONE (HYDROCORTISONE)HYDROCORTISONE25 mg  in 1 g


























Inactive Ingredients
Ingredient NameStrength
GLYCERYL MONOSTEARATE 
POLYOXYL 40 STEARATE 
GLYCERIN 
PARAFFIN 
STEARYL ALCOHOL 
ISOPROPYL PALMITATE 
SORBITAN MONOSTEARATE 
BENZYL ALCOHOL 
POTASSIUM SORBATE 
LACTIC ACID 
WATER 


















Product Characteristics
Color    Score    
ShapeSize
FlavorImprint Code
Contains      














Packaging
#NDCPackage DescriptionMultilevel Packaging
168220-141-301 TUBE In 1 CARTONcontains a TUBE
130 g In 1 TUBEThis package is contained within the CARTON (68220-141-30)










Marketing Information
Marketing CategoryApplication Number or Monograph CitationMarketing Start DateMarketing End Date
ANDAANDA08941403/18/2011


Labeler - Alaven Pharmaceutical LLC (140210829)
Revised: 03/2011Alaven Pharmaceutical LLC




More Proctocream HC resources


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  • Proctocream HC Support Group
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Saturday, March 3, 2012

tesamorelin


Generic Name: tesamorelin (TES a moe REL in)

Brand Names: Egrifta


What is tesamorelin?

Tesamorelin is made with growth hormone-releasing factor (GRF).


Tesamorelin is used to reduce excess fat around the stomach that is caused by taking certain HIV medications. This condition is also called lipodystrophy (LYE-poe-DIS-troe-fee).


Tesamorelin is not a weight-loss medication and should not be used to treat obesity.

What is the most important information I should know about tesamorelin?


Tesamorelin can harm an unborn baby or cause birth defects. Do not use if you are pregnant. You should not use tesamorelin if you are allergic to it, or if you have a history of tumor or surgery of your pituitary gland, a history of head injury or radiation treatment,

Before using tesamorelin, tell your doctor if you have heart disease, high blood pressure, kidney disease, diabetes, epilepsy, asthma, migraines, an adrenal gland disorder, or if you have ever had cancer, any type of tumor, or open heart surgery.


Also tell your doctor about any major illness or recent trauma or medical emergency.


What should I discuss with my healthcare provider before using tesamorelin?


You should not use tesamorelin if you are allergic to it, or if you have:

  • cancer;




  • a pituitary gland disorder;




  • a history of pituitary gland tumor or surgery;




  • a history of head injury or radiation treatment; or




  • if you are pregnant.



To make sure you can safely take tesamorelin, tell your doctor if you have any of these other conditions:



  • a history of cancer or any tumor (either benign or malignant);




  • heart disease, high blood pressure;




  • kidney disease;




  • diabetes, eye problems caused by diabetes;




  • epilepsy




  • asthma;




  • migraine headaches;




  • adrenal gland disorder;




  • if you have ever had open heart surgery; or




  • if you have any major illness, or a recent trauma or medical emergency.




FDA pregnancy category X. This medication can harm an unborn baby or cause birth defects. Do not use tesamorelin if you are pregnant. Tell your doctor right away if you become pregnant during treatment. Women with HIV or AIDS should not breast feed a baby. Even if your baby is born without HIV, the virus may be passed to the baby in your breast milk. Do not give this medicine to a child without medical advice.

How tesamorelin given?


Tesamorelin is injected under the skin. You may be shown how to use injections at home. Do not self inject this medicine if you do not fully understand how to give the injection and properly dispose of used needles and syringes.


This medication comes with injection instructions for safe and effective use. Follow these directions carefully. Ask your doctor or pharmacist if you have any questions.


Tesamorelin is a powder medicine that must be mixed with a liquid (diluent) before using it. If you are using the injections at home, be sure you understand how to properly mix and store the medicine.


Prepare your dose in a syringe only when you are ready to give yourself an injection. Do not use the medication if it has changed colors or has particles in it. Call your doctor for a new prescription. After mixing tesamorelin with a diluent, you must use it right away. Do not store the mixture for later use.

Tesamorelin is usually given once per day. Follow your doctor's dosing instructions very carefully.


Use a different place on your stomach each time you give the injection. Your care provider will show you the best places on your body to inject the medication. Do not inject into the same place two times in a row.


Never share a tesamorelin syringe with another person, even if you change the needle. Sharing syringes or needles can allow HIV or other diseases to pass from one person to another.

To make sure this medication is helping your condition and not causing harmful effects, your blood will need to be tested often. Do not miss any follow-up visits to your doctor.


Store vials of tesamorelin powder in the refrigerator, do not freeze. Store the diluent at room temperature away from moisture, heat, and light.

Throw away any unused vials after the expiration date on the label has passed.


What happens if I miss a dose?


Call your doctor for instructions if you miss a dose of tesamorelin.


What happens if I overdose?


Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

What should I avoid while using tesamorelin?


Do not inject this medicine into scar tissue or on skin that is bruised. Do not inject directly into your navel (belly-button).


Tesamorelin side effects


Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat. Stop using tesamorelin and call your doctor at once if you have a serious side effect such as:

  • swelling in your hands, ankles, or feet;




  • pain or stiffness in your muscles or joints;




  • pain in your arms or legs;




  • wrist pain or numbness;




  • numbness or tingling in your hands or fingers;




  • pounding heartbeats or fluttering in your chest;




  • high blood sugar (increased thirst, increased urination, hunger, dry mouth, fruity breath odor, drowsiness, dry skin, blurred vision, weight loss);



Less serious side effects may include:



  • depressed mood, sleep problems (insomnia);




  • night sweats;




  • mild rash or itching;




  • muscle spasm;




  • nausea, vomiting, upset stomach;




  • pain, redness, itching, swelling, bruising, bleeding, or other irritation where the injection was given;



This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.


Tesamorelin Dosing Information


Usual Adult Dose for Lipodystrophy:

For the reduction of excess abdominal fat in HIV-infected patients with lipodystrophy:
2 mg injected subcutaneously once a day.


What other drugs will affect tesamorelin?


Tell your doctor about all other medicines you use, especially:



  • cyclosporine (Gengraf, Neoral, Sandimmune);




  • testosterone or hormone replacement therapy;




  • seizure medication;




  • steroids (prednisone and others);



This list is not complete and there are many other drugs that can interact with tesamorelin. Tell your doctor about all medications you use. This includes prescription, over-the-counter, vitamin, and herbal products. Do not start a new medication without telling your doctor. Keep a list of all your medicines and show it to any healthcare provider who treats you.



More tesamorelin resources


  • Tesamorelin Side Effects (in more detail)
  • Tesamorelin Use in Pregnancy & Breastfeeding
  • Tesamorelin Drug Interactions
  • Tesamorelin Support Group
  • 2 Reviews for Tesamorelin - Add your own review/rating


  • tesamorelin Subcutaneous Advanced Consumer (Micromedex) - Includes Dosage Information

  • Tesamorelin Professional Patient Advice (Wolters Kluwer)

  • Tesamorelin MedFacts Consumer Leaflet (Wolters Kluwer)

  • Egrifta Prescribing Information (FDA)

  • Egrifta Consumer Overview



Compare tesamorelin with other medications


  • Lipodystrophy


Where can I get more information?


  • Your pharmacist can provide more information about tesamorelin.

See also: tesamorelin side effects (in more detail)


Friday, March 2, 2012

Major Pharmaceuticals


Address


Major Pharmaceuticals,
31778 Enterprise Drive

Livonia

MI 48150

Contact Details

Phone: (734) 743-6161
Website: http://www.majorpharmaceuticals.com/
Careers: http://www.majorpharmaceuticals.com...

Thursday, March 1, 2012

Albumin (Human) 20%




FULL PRESCRIBING INFORMATION

Indications and Usage for Albumin (Human) 20%



Hypovolemia


Albumin (Human) 20% is indicated in the emergency treatment of hypovolemia with or without shock. Its effectiveness in reversing hypovolemia depends largely upon its ability to draw interstitial fluid into the circulation. It is most effective in patients who are well hydrated. When blood volume deficit is the result of hemorrhage, compatible red blood cells or whole blood should be administered as quickly as possible. [1, 2]


When hypovolemia is long standing and hypoalbuminemia exists accompanied by adequate hydration or edema, 20% - 25% albumin solutions should be used. [1 ]



Hypoalbuminemia


For subjects with hypoalbuminemia who are critically ill and/or are bleeding actively, ALBUMIN (HUMAN) 20% infusions may be indicated. [3 ] When albumin deficit is the result of excessive protein loss, the effect of administration of Albumin (Human) 20% will be temporary unless the underlying disorder is reversed.



Prevention of Central Volume Depletion after Paracentesis due to Cirrhotic Ascites (Treatment Adjunct)


Albumin (Human) 20% may be used to maintain cardiovascular function following the removal of large volumes of ascitic fluid after paracentesis due to cirrhotic ascites. [2 ]



Ovarian Hyperstimulation Syndrome (OHSS)


Albumin (Human) 20% may be used as a plasma expander in fluid management relating to severe forms of ovarian hyperstimulation syndrome (OHSS). [7, 8]



Adult Respiratory Distress Syndrome (ARDS) (Treatment Adjunct)


Albumin (Human) 20% infusions may be indicated in conjunction with diuretics to correct the fluid volume overload associated with ARDS. [5 ]



Acute Nephrosis (Treatment Adjunct)


Albumin (Human) 20% may be used to treat edema in patients with acute nephrosis who are refractory to cyclophosphamide and corticosteroid therapy. [1 ]



Hemolytic Disease of the Newborn (HDN)


Albumin (Human) 20% is indicated in the treatment of hyperbilirubinemia. It may be used prior to or during an exchange procedure in an attempt to bind free and to enhance its removal. [6 ]



Albumin (Human) 20% Dosage and Administration



Dosage


General Recommendations


The concentration of the albumin preparation, dosage and the infusion rate should be adjusted to the patient’s individual requirements.


The dose required depends on the body weight of the patient, the severity of trauma or illness and on continuing fluid and protein losses. Measures of adequacy of circulating volume and not plasma albumin levels should be used to determine the dose required.


The daily dose should not exceed 2 g of Albumin (Human) 20% per kg of body weight.


Hypovolemia


In adults, an intravenous infusion of 25 g should be given. If adequate response (stabilization of circulation) is not achieved within 15 to 30 minutes, an additional dose may be given.


In spite of limited information about the efficacy in pediatric subjects, an intravenous infusion of 2.5 to 12.5 g or 0.5 to 1 g/kg body weight may be given. If adequate response (stabilization of circulation) is not achieved within 15 to 30 minutes, an additional dose may be given.


Hemodilution may follow administration of Albumin (Human) 20%. If hemorrhage has occurred, this may result in relative anemia. This condition should be controlled by the supplemental administration of compatible red blood cells or compatible whole blood.


Hypoalbuminemia


In adults, intravenous infusion of 50 to 75 g of Albumin (Human) 20% may be used. Hypoalbuminemia is usually accompanied by a hidden extravascular albumin deficiency of equal magnitude. This total body albumin deficit must be considered when determining the amount of albumin necessary to reverse the hypoalbuminemia.


In burns, therapy usually starts with the administration of large volumes of crystalloid injection to maintain plasma volume. After 24 hours, Albumin (Human) 20% may be added at an initial dose of 25 g with the dose adjusted thereafter to maintain a plasma protein concentration of 2.5 g per 100 mL or a serum protein concentration of 5.2 g/100 mL.


Prevention of Central Volume Depletion after Paracentesis due to Cirrhotic Ascites


In adults, intravenous infusion of 8 g of Albumin (Human) 20% may be given for every 1,000 mL of ascitic fluid removed.


Ovarian Hyperstimulation Syndrome


In adults, as a guideline, doses of 50 – 100 g of Albumin (Human) 20% should be infused over 4 hours and repeated at 4- to 12-hour intervals as necessary, when infusion of normal saline fails to achieve or maintain hemodynamic stability and urine output. [7 ]


Adult Respiratory Distress Syndrome (ARDS)


In adults, a dose of 25 g of Albumin (Human) 20% can be infused over 30 minutes and repeated at 8 hour intervals for 3 days, if necessary. [5 ]


Induction of Diuresis in Patients with Acute Nephrosis


In adults, a dose of 25 g of Albumin (Human) 20% can be infused, administered with an appropriate diuretic once a day for 7 to 10 days.


Hemolytic Disease of the Newborn


In newborns, Albumin (Human) 20% may be administered prior to or during exchange transfusion at a dose of 1 g per kilogram body weight. [6 ]



Administration


Intravenous use only.


Prior to administration, parenteral drug products should be inspected visually for turbidity and discoloration, whenever solution and container permit.


Do not dilute with sterile water for injection.


Do not use solutions of Albumin (Human) 20% which are cloudy or have deposits. Once the infusion container has been opened the contents should be used immediately. Discard the unused portion. Filtration of Albumin (Human) 20% is not required.


The infusion rate should be adjusted according to the individual circumstances and the indication. In plasma exchange during paracentesis, the infusion rate may be higher and should be adjusted to the rate of removal.


If large volumes (greater than 1500 ml) are administered, the product should be warmed to room temperature before use.



Dosage Forms and Strengths


Albumin (Human) 20% is supplied in


  • 10 g in 50 mL infusion bottle

  • 20 g in 100 mL infusion bottle

Do not use in individuals who are hypersensitive to albumin preparations, any ingredient in the formulation, or components of the container.



Warnings and Precautions



Hypersensitivity


Hypersensitivity or allergic reactions have been observed, and may in some cases progress to severe anaphylaxis. Epinephrine should be available immediately to treat any acute hypersensitivity reaction.



Hypervolemia/Hemodilution


Hypervolemia may occur if the dosage and rate of infusion are not adjusted to the patient’s volume status. At the first clinical signs of possible cardiovascular overload, e.g., headache, dyspnea, increased blood pressure, jugular venous distention, elevated central venous pressure, pulmonary edema, the infusion should be stopped immediately and the patient reevaluated. Albumin should be used with caution in conditions where hypervolemia and its consequences or hemodilution could represent a special risk for the patient. Examples of such conditions are:


  • Decompensated cardiac insufficiency

  • Hypertension

  • Esophageal varices

  • Pulmonary edema

  • Hemorrhagic diathesis

  • Severe anemia

  • Renal and post-renal anuria.

20-25% Albumin (Human) is relatively low in electrolytes compared to the 4-5% Albumin (Human) solutions. When albumin is given, monitor the electrolyte status of the patient and take appropriate steps to restore or maintain the electrolyte balance.



Coagulation Abnormalities


If comparatively large volumes are to be replaced, monitoring of coagulation and hematocrit is necessary. Ensure adequate substitution of other blood constituents (coagulation factors, electrolytes, platelets and erythrocytes).



Laboratory Monitoring


If Albumin (Human) 20% is to be administered, monitor hemodynamic performance regularly; this may include:


  • Arterial blood pressure and pulse rate

  • Central venous pressure

  • Pulmonary artery occlusion pressure

  • Urine output

  • Electrolytes

  • Hematocrit/hemoglobin.

Albumin (Human) 20% must not be diluted with sterile water for injection as this may cause hemolysis in recipients.



Infection Risk from Human Plasma


This product is a derivative of human plasma. Based on effective donor screening and product manufacturing processes it carries an extremely remote risk for transmission of viral diseases. A theoretical risk for transmission of Creutzfeldt-Jakob Disease (CJD) also is considered extremely remote. No cases of transmission of viral diseases or CJD have been identified for Albumin (Human) 20%.



Adverse Reactions



General


The most serious events are anaphylactic shock, circulatory failure, cardiac failure, and pulmonary edema.


The most common adverse events are anaphylactoid type of reactions.


Adverse reactions for Albumin (Human) 20% normally resolve when the infusion rate is slowed down or the infusion is stopped. In case of severe reactions, the infusion should be stopped and appropriate treatment should be initiated.



Clinical Studies Experience


No clinical studies were done using Albumin (Human) 20%



Postmarketing Experience


The following adverse reactions have been identified during post-approval use of ALBUMIN (HUMAN) (any strength). Because these reactions are reported voluntarily from a population of unknown size, it is not always possible to reliably estimate their frequency.


Table 1 Adverse reactions observed for ALBUMIN HUMAN (any strength) during post-marketing phase (in decreasing order of severity)



























Observed Adverse Reactions

anaphylactic shock



cardiac failure



loss of consciousness



circulatory failure



hypersensitivity



congestive heart failure



pulmonary edema



dyspnea



hypotension



hypertension



tachycardia



bradycardia



vomiting



urticaria



angioneurotic edema



rash erythematous



confusional state



headache



chills



pyrexia



flushing



nausea



pruritus



hyperhidrosis


No drug interaction studies have been conducted.



Drug Interactions


No drug interaction studies have been conducted.



USE IN SPECIFIC POPULATIONS



Pregnancy


Pregnancy Category C. Animal reproduction studies have not been performed with Albumin (Human) 20%. It is also not known whether Albumin (Human) 20% can cause fetal harm when administered to a pregnant woman or can affect reproductive capacity. Albumin (Human) 20% should be given to a pregnant woman only if necessary.



Labor and Delivery


It is also not known whether Albumin (Human) 20% can cause fetal harm when administered to a woman during labor or delivery of if it will affect reproductive capacity. Albumin (Human) 20% should be given during labor or delivery only if necessary.



Nursing Mothers


It is not known whether this drug is excreted in human milk. Albumin (Human) 20% should be given to nursing mothers only if necessary. Because many drugs are excreted in human milk, caution should be exercised when Albumin (Human) 20% is administered to a lactating woman.



Pediatric Use


Data on the use of Albumin (Human) 20% in children including premature babies are very limited. The product should be administered to pediatric patients only if needed.



Geriatric Use


Clinical studies did not include a sufficient number of subjects aged 65 and older to determine whether they respond differently from younger subjects.



Albumin (Human) 20% Description


Albumin (Human) 20% is a sterile, liquid preparation of albumin derived from large pools of human plasma. All units of human plasma used in the manufacture of Albumin (Human) 20% are provided by FDA approved blood establishments only.


The product is manufactured by cold ethanol fractionation followed by ultra- and diafiltration. The manufacturing process includes final container pasteurization and additional bulk pasteurization at 60 +/- 0.5°C for 10 – 11 hours. The Albumin (Human) 20% manufacturing process provides a significant viral reduction in in vitro studies (table 2). These reductions are achieved through a combination of process steps including Cohn fractionation and final container pasteurization.


No procedure, however, has been shown to be completely effective in removing viral infectivity from derivatives of human plasma.[see Warnings and Precautions, Infection Risk from Human Plasma (5.7)]


Table 2 In vitro reduction factor during Albumin (Human) 20% manufacturing



PRV:Pseudorabies Virus


SBV: Sindbis Virus


HIV-1:Human Immunodeficiency Virus - 1


Reo 3:Reovirus Type 3


PPV:Porcine Parvovirus


HAV:Hepatitis A Virus


Albumin (Human) 20% is a clear, slightly viscous liquid; it is almost colorless or slightly yellow or green.


The composition of Albumin (Human) 20% is as follows:


























ComponentQuantity/1000 ml

Protein, of which greater than or equal to



96% is human albumin



200 g



Sodium



130 – 160 mmol



Potassium



less than or equal to 2 mmol



N-acetyl-DL-tryptophan



0.064 - 0.096 mmol/g protein



Caprylic acid



0.064 - 0.096 mmol/g protein



Water for Injection



ad. 1000 ml


Albumin (Human) 20% contains no preservatives and components used in its packaging are latex-free.



Albumin (Human) 20% - Clinical Pharmacology


No pharmacokinetic or pharmacodynamic studies with Albumin (Human) 20% have been conducted.



Mechanism of Action


Albumin is responsible for 75-80% of the colloid osmotic pressure of normal plasma. Albumin stabilizes circulating blood volume and is a carrier of hormones, enzymes, medicinal products and toxins. [3 ]


Albumin is a protein with a total extravascular mass of approximately 160 g and an intravascular mass of about 120 g. [3 ]



Pharmacodynamics


The colloid osmotic effect of Albumin (Human) 20% and 25% is approximately 5 times the volume administered. When injected intravenously, it will increase circulating plasma volume by approximately 3.5 times the volume infused within 15 minutes if the patient is adequately hydrated. This extra fluid reduces hemoconcentration and blood viscosity. The degree and duration of volume expansion depends upon the initial blood volume. When treating patients with diminished blood volume, the effect of infused albumin may persist for many hours. The hemodilution lasts for a shorter time when albumin is administered to individuals with normal blood volume. [4 ]



NON-CLINICAL TOXICOLOGY


No non-clinical toxicology studies with Albumin (Human) 20% have been conducted. Human Albumin is a normal constituent of human plasma and acts like physiological albumin.



Clinical Studies


No clinical studies with Albumin (Human) 20% have been conducted.



REFERENCES


  1. Tullis JL: Albumin 2.Guidelines for Clinical Use. JAMA 1977; 237:460-463

  2. Vermeulen LC et al.: A Paradigm for Consensus. Arch. Intern. Med. 1995; 155:373-379

  3. Mendez CM, McClain CJ, Marsano LS: Albumin Therapy in Clinical Practice. Nutrition in Clinical Practice 2005; 20: 314-320

  4. Janeway, C. A. "Human Serum Albumin: Historical Review" in: Proceedings of the Workshop on Albumin. DHEW Publication No. (NIH) 76-925. Sgouris, J. T. and René A. (eds.), Washington, D.C., U.S. Government Printing Office. 1976, pp 3-21.

  5. Martin GS et al.: A randomized, controlled trail of furosemide with or without albumin in hypoproteinemic patients with acute lung injury. Crit. Care Med. 2005; 33: 1681-1687

  6. Tsao YC, Yu VY: Albumin in management of neonatal hyperbilirubinaemia. Arch Dis.Child 1972;47:250-256.

  7. Practice Committee of the American Society for Reproductive Medicine. Ovarian hyperstimulation syndrome. Fertil.Steril. 2006;86:S178-S183.

  8. Aboulghar M, Evers JH, Al Inany H: Intravenous albumin for preventing severe ovarian hyperstimulation syndrome: a Cochrane review. Hum.Reprod. 2002;17:3027-3032.


How Supplied/Storage and Handling


Albumin (Human) 20% is supplied in 10 g in 50 mL or 20 g in 100 mL single use bottles.


















NDC NumberNDC NumberSizeGrams protein

Octapharma Pharmazeutika Produktionsges.m.b.H



Octapharma AB



67467-633-01



68209-633-01



50 ml



10



67467-633-02



68209-633-02



100 ml



20


Albumin (Human) 20% may be stored for 36 months at +2°C to + 25°C (36°F to 77°F) from the date of manufacture.


Store protected from light.


Do not freeze.


Do not use after expiration date.


Do not use if turbid.



Patient Counseling Information



Information for Patients


This product is usually given in a hospital setting.


Inform patients being treated with Albumin (Human) 20% about the potential risks and benefits with its use [see Adverse Reactions (6)].


Discontinue immediately if allergic symptoms occur (e.g. skin rashes, hives, itching, breathing difficulties, coughing, nausea, vomiting, fall in blood pressure, increased heart rate).


Inform patients that Albumin (Human) 20% is a derivative of human plasma and may contain infectious agents that cause disease (e.g., viruses, and theoretically, CJD agent). Inform patients that the risk that Albumin (Human) 20% may transmit an infections agent has been reduced by screening plasma donors for prior exposure for certain viruses, by testing the donated plasma for certain virus infections and by inactivating and/or removing certain viruses during manufacturing [see Warnings and Precautions (5.7)].


Manufactured by:


Octapharma Pharmazeutika Produktionsges.m.b.H.


Oberlaaer Strasse 235


A-1100 Vienna, Austria


Octapharma AB


Elersvägen 40


SE- 112 75, Sweden


U.S. License No. 1646


Distributed by:


Octapharma USA Inc.


121 River Street, 12 th floor


Hoboken, NJ 07030



PACKAGE LABEL - PRINCIPAL DISPLAY PANEL


Albumin (Human) 20%


10 g in 50 mL


Octapharma Pharmazeutika Produktionsges.m.b.H


NDC 67467-633-01



Octapharma AB


NDC 68209-633-01



Albumin (Human) 20%


20 g in 100 mL


Octapharma Pharmazeutika Produktionsges.m.b.H


NDC 67467-633-02



Octapharma AB


NDC 68209-633-02










ALBUMIN (HUMAN) 
albumin human  solution










Product Information
Product TypeHUMAN PRESCRIPTION DRUGNDC Product Code (Source)67467-633
Route of AdministrationIntravenousDEA Schedule    








Active Ingredient/Active Moiety
Ingredient NameBasis of StrengthStrength
ALBUMIN (HUMAN) (ALBUMIN (HUMAN))ALBUMIN (HUMAN)200 g  in 1000 mL





Inactive Ingredients
Ingredient NameStrength
No Inactive Ingredients Found


















Product Characteristics
Color    Score    
ShapeSize
FlavorImprint Code
Contains      














Packaging
#NDCPackage DescriptionMultilevel Packaging
167467-633-0150 mL In 1 BOTTLE, GLASSNone
267467-633-02100 mL In 1 BOTTLE, GLASSNone










Marketing Information
Marketing CategoryApplication Number or Monograph CitationMarketing Start DateMarketing End Date
BLABLA12515410/17/2006


Labeler - Octapharma Pharmazeutika Produktionsgesellschaft m.b.H. (301119178)
Revised: 01/2010Octapharma Pharmazeutika Produktionsgesellschaft m.b.H.

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Tuesday, February 28, 2012

Gabapentin 100 mg Capsules (Sandoz Limited )





1. Name Of The Medicinal Product



Gabapentin 100 mg Capsules


2. Qualitative And Quantitative Composition



Each capsule, hard contains 100 mg of gabapentin.



For a full list of excipients, see section 6.1.



3. Pharmaceutical Form



Capsule, hard



Hard gelatin capsule (size 3), with white opaque body and cap.



4. Clinical Particulars



4.1 Therapeutic Indications



Epilepsy



Gabapentin is indicated as adjunctive therapy in the treatment of partial seizures with and without secondary generalization in adults and children aged 6 years and above (see section 5.1).



Gabapentin is indicated as monotherapy in the treatment of partial seizures with and without secondary generalization in adults and adolescents aged 12 years and above.



Treatment of peripheral neuropathic pain



Gabapentin is indicated for the treatment of peripheral neuropathic pain such as painful diabetic neuropathy and post-herpetic neuralgia in adults.



4.2 Posology And Method Of Administration



For oral use.



Gabapentin can be given with or without food and should be swallowed whole with sufficient fluid-intake (e.g. a glass of water).



For all indications a titration scheme for the initiation of therapy is described in Table 1, which is recommended for adults and adolescents aged 12 years and above. Dosing instructions for children under 12 years of age are provided under a separate sub-heading later in this section.
















Table 1


  


DOSING CHART – INITIAL TITRATION


  


Day 1




Day 2




Day 3




300 mg once a day




300 mg two times a day




300 mg three times a day



Epilepsy



Epilepsy typically requires long-term therapy. Dosage is determined by the treating physician according to individual tolerance and efficacy. When in the judgment of the clinician there is a need for dose reduction, discontinuation, or substitution with an alternative medication, this should be done gradually over a minimum of one week.



Adults and adolescents:



In clinical trials, the effective dosing range was 900 to 3600 mg/day. Therapy may be initiated by titrating the dose as described in Table 1 or by administering 300 mg three times a day (TID) on Day 1. Thereafter, based on individual patient response and tolerability, the dose can be further increased in 300 mg/day increments every 2-3 days up to a maximum dose of 3600 mg/day. Slower titration of gabapentin dosage may be appropriate for individual patients. The minimum time to reach a dose of 1800 mg/day is one week, to reach 2400 mg/day is a total of 2 weeks, and to reach 3600 mg/day is a total of 3 weeks. Dosages up to 4800 mg/day have been well tolerated in long-term open-label clinical studies. The total daily dose should be divided in three single doses, the maximum time interval between the doses should not exceed 12 hours to prevent breakthrough convulsions.



Children aged 6 years and above:



The starting dose should range from 10 to 15 mg/kg/day and the effective dose is reached by upward titration over a period of approximately three days. The effective dose of gabapentin in children aged 6 years and older is 25 to 35 mg/kg/day. Dosages up to 50 mg/kg/day have been well tolerated in a long-term clinical study. The total daily dose should be divided in three single doses, the maximum time interval between doses should not exceed 12 hours.



It is not necessary to monitor gabapentin plasma concentrations to optimize gabapentin therapy. Further, gabapentin may be used in combination with other antiepileptic medicinal products without concern for alteration of the plasma concentrations of gabapentin or serum concentrations of other antiepileptic medicinal products.



Peripheral neuropathic pain



Adults



The therapy may be initiated by titrating the dose as described in Table 1. Alternatively, the starting dose is 900 mg/day given as three equally divided doses. Thereafter, based on individual patient response and tolerability, the dose can be further increased in 300 mg/day increments every 2-3 days up to a maximum dose of 3600 mg/day. Slower titration of gabapentin dosage may be appropriate for individual patients. The minimum time to reach a dose of 1800 mg/day is one week, to reach 2400 mg/day is a total of 2 weeks, and to reach 3600 mg/day is a total of 3 weeks.



In the treatment of peripheral neuropathic pain such as painful diabetic neuropathy and post-herpetic neuralgia, efficacy and safety have not been examined in clinical studies for treatment periods longer than 5 months. If a patient requires dosing longer than 5 months for the treatment of peripheral neuropathic pain, the treating physician should assess the patient's clinical status and determine the need for additional therapy.



Instruction for all areas of indication



In patients with poor general health, i.e., low body weight, after organ transplantation etc., the dose should be titrated more slowly, either by using smaller dosage strengths or longer intervals between dosage increases.



Use in elderly patients (over 65 years of age)



Elderly patients may require dosage adjustment because of declining renal function with age (see Table 2). Somnolence, peripheral oedema and asthenia may be more frequent in elderly patients.



Use in patients with renal impairment



Dosage adjustment is recommended in patients with compromised renal function as described in Table 2 and/or those undergoing haemodialysis. Gabapentin 100 mg capsules can be used to follow dosing recommendations for patients with renal insufficiency.




















Table 2


 


Dosage of Gabapentin in Adults Based on Renal Function


 


Creatinine Clearance (ml/min)




Total Daily Dosea (mg/day)







900-3600




50-79




600-1800




30-49




300-900




15-29




150b-600




<15c




150b-300



a Total daily dose should be administered as three divided doses. Reduced dosages are for patients with renal impairment (creatinine clearance < 79 ml/min).



b To be administered as 300 mg every other day.



c For patients with creatinine clearance <15 ml/min, the daily dose should be reduced in proportion to creatinine clearance (e.g., patients with a creatinine clearance of 7.5 ml/min should receive one-half the daily dose that patients with a creatinine clearance of 15 ml/min receive).



Use in patients undergoing haemodialysis



For anuric patients undergoing haemodialysis who have never received gabapentin, a loading dose of 300 to 400 mg, then 200 to 300 mg of gabapentin following each 4 hours of haemodialysis, is recommended. On dialysis-free days, there should be no treatment with gabapentin.



For renally impaired patients undergoing haemodialysis, the maintenance dose of gabapentin should be based on the dosing recommendations found in Table 2. In addition to the maintenance dose, an additional 200 to 300 mg dose following each 4-hour haemodialysis treatment is recommended.



4.3 Contraindications



Hypersensitivity to the active substance or to any of the excipients.



4.4 Special Warnings And Precautions For Use



If a patient develops acute pancreatitis under treatment with gabapentin, iscontinuation of gabapentin should be considered (see section 4.8).



Although there is no evidence of rebound seizures with gabapentin, abrupt withdrawal of anticonvulsants in epileptic patients may precipitate status epilepticus (see section 4.2).



As with other antiepileptic medicinal products, some patients may experience an increase in seizure frequency or the onset of new types of seizures with gabapentin.



As with other anti-epileptics, attempts to withdraw concomitant anti-epileptics in treatment refractory patients on more than one anti-epileptic, in order to reach gabapentin monotherapy have a low success rate.



Gabapentin is not considered effective against primary generalized seizures such as absences and may aggravate these seizures in some patients. Therefore, gabapentin should be used with caution in patients with mixed seizures including absences.



No systematic studies in patients 65 years or older have been conducted with gabapentin. In one double blind study in patients with neuropathic pain, somnolence, peripheral oedema and asthenia occurred in a somewhat higher percentage in patients aged 65 years or above, than in younger patients. Apart from these findings, clinical investigations in this age group do not indicate an adverse event profile different from that observed in younger patients.



The effects of long-term (greater than 36 weeks) gabapentin therapy on learning, intelligence, and development in children and adolescents have not been adequately studied. The benefits of prolonged therapy must therefore be weighed against the potential risks of such therapy.



Suicidal ideation and behaviour have been reported in patients treated with antiepileptic agents in several indications. A meta-analysis of randomised placebo controlled trials of anti-epileptic drugs has also shown a small increased risk of suicidal ideation and behaviour. The mechanism of this risk is not known and the available data do not exclude the possibility of an increased risk for gabapentin. Therefore patients should be monitored for signs of suicidal ideation and behaviours and appropriate treatment should be considered. Patients (and caregivers of patients) should be advised to seek medical advice should signs of suicidal ideation or behaviour emerge.



Laboratory tests



False positive readings may be obtained in the semi-quantitative determination of total urine protein by dipstick tests. It is therefore recommended to verify such a positive dipstick test result by methods based on a different analytical principle such as the Biuret method, turbidimetric or dye-binding methods, or to use these alternative methods from the beginning.



4.5 Interaction With Other Medicinal Products And Other Forms Of Interaction



In a study involving healthy volunteers (N=12), when a 60 mg controlled-release morphine capsule was administered 2 hours prior to a 600 mg gabapentin capsule, mean gabapentin AUC increased by 44% compared to gabapentin administered without morphine. Therefore, patients should be carefully observed for signs of CNS depression, such as somnolence, and the dose of gabapentin or morphine should be reduced appropriately.



No interaction between gabapentin and phenobarbital, phenytoin, valproic acid, or carbamazepine has been observed.



Gabapentin steady-state pharmacokinetics are similar for healthy subjects and patients with epilepsy receiving these antiepileptic agents.



Coadministration of gabapentin with oral contraceptives containing norethindrone and/or ethinyl estradiol, does not influence the steady-state pharmacokinetics of either component.



Coadministration of gabapentin with antacids containing aluminium and magnesium, reduces gabapentin bioavailability up to 24%. It is recommended that gabapentin be taken at the earliest two hours following antacid administration.



Renal excretion of gabapentin is unaltered by probenecid.



A slight decrease in renal excretion of gabapentin that is observed when it is coadministered with cimetidine is not expected to be of clinical importance.



4.6 Pregnancy And Lactation



Risk related to epilepsy and antiepileptic medicinal products in general



The risk of birth defects is increased by a factor of 2 – 3 in the offspring of mothers treated with an antiepileptic medicinal product. Most frequently reported are cleft lip, cardiovascular malformations and neural tube defects. Multiple antiepileptic drug therapy may be associated with a higher risk of congenital malformations than monotherapy, therefore it is important that monotherapy is practised whenever possible. Specialist advice should be given to women who are likely to become pregnant or who are of childbearing potential and the need for antiepileptic treatment should be reviewed when a woman is planning to become pregnant. No sudden discontinuation of antiepileptic therapy should be undertaken as this may lead to breakthrough seizures, which could have serious consequences for both mother and child. Developmental delay in children of mothers with epilepsy has been observed rarely. It is not possible to differentiate if the developmental delay is caused by genetic, social factors, maternal epilepsy or the antiepileptic therapy.



Risk related to gabapentin



There are no adequate data from the use of gabapentin in pregnant women.



Studies in animals have shown reproductive toxicity (see section 5.3). The potential risk for humans is unknown. Gabapentin should not be used during pregnancy unless the potential benefit to the mother clearly outweighs the potential risk to the foetus.



No definite conclusion can be made as to whether gabapentin is associated with an increased risk of congenital malformations when taken during pregnancy, because of epilepsy itself and the presence of concomitant antiepileptic medicinal products during each reported pregnancy.



Gabapentin is excreted in human milk. Because the effect on the breast-fed infant is unknown, caution should be exercised when gabapentin is administered to a breast-feeding mother. Gabapentin should be used in breast-feeding mothers only if the benefits clearly outweigh the risks.



4.7 Effects On Ability To Drive And Use Machines



Gabapentin may have minor or moderate influence on the ability to drive and use machines. Gabapentin acts on the central nervous system and may cause drowsiness, dizziness or other related symptoms. Even, if they were only of mild or moderate degree, these undesirable effects could be potentially dangerous in patients driving or operating machinery. This is especially true at the beginning of the treatment and after increase in dose.



4.8 Undesirable Effects



The adverse reactions observed during clinical studies conducted in epilepsy (adjunctive and monotherapy) and neuropathic pain have been provided in a single list below by class and frequency (very common (



Within each frequency grouping, undesirable effects are presented in order of decreasing seriousness.












































































































Infections and infestations


 


Very Common:




Viral infection




Common:




Pneumonia, respiratory infection, urinary tract infection, infection, otitis media




Blood and the lymphatic system disorders


 


Common:




Leucopenia




Rare:




Thrombocytopenia




Immune system disorders


 


Rare:




Allergic reactions (e.g. urticaria)




Metabolism and Nutrition Disorders


 


Common:




Anorexia, increased appetite




Psychiatric disorders


 


Common:




Hostility, confusion and emotional lability, depression, anxiety, nervousness, thinking abnormal




Rare:




Hallucinations




Nervous system disorders


 


Very Common:




Somnolence, dizziness, ataxia,




Common:




Convulsions, hyperkinesias, dysarthria, amnesia, tremor, insomnia, headache, sensations such as paresthesia, hypaesthesia, coordination abnormal, nystagmus, increased, decreased, or absent reflexes




Rare:




Movement disorders (e.g. choreoathetosis, dyskinesia, dystonia)




Eye disorders


 


Common:




Visual disturbances such as amblyopia, diplopia




Ear and Labyrinth disorders


 


Common:




Vertigo




Rare:




Tinnitus




Cardiac disorders


 


Rare:




Palpitations




Vascular disorder


 


Common:




Hypertension, vasodilatation




Respiratory, thoracic and mediastinal disorders


 


Common:




Dyspnoea, bronchitis, pharyngitis, cough, rhinitis




Gastrointestinal disorders


 


Common:




Vomiting, nausea, dental abnormalities, gingivitis, diarrhea, abdominal pain, dyspepsia, constipation, dry mouth or throat, flatulence




Rare:




Pancreatitis




Hepatobiliary disorders


 


Rare:




Hepatitis, jaundice




Skin and subcutaneous tissue disorders


 


Common:




Facial oedema, purpura most often described as bruises resulting from physical trauma, rash, pruritus, acne




Rare:




Stevens-Johnson syndrome, angioedema, erythema multiforme, alopecia




Musculoskeletal, connective tissue and bone disorders


 


Common:




Arthralgia, myalgia, back pain, twitching




Renal and urinary disorders


 


Common:




Incontinence




Rare:




Acute renal failure




Reproductive system and breast disorders


 


Common:




Impotence




General disorders and administration site conditions


 


Very Common:




Fatigue, fever




Common:




Peripheral or generalized oedema, abnormal gait, asthenia, pain, malaise, flu syndrome




Rare:




Withdrawal reactions (mostly anxiety, insomnia, nausea, pains, sweating), chest pain. Sudden unexplained deaths have been reported where a causal relationship to treatment with gabapentin has not been established.




Investigations


 


Common:




WBC (white blood cell count) decreased, weight gain




Rare:




Blood glucose fluctuations in patients with diabetes, elevated liver function tests




Injury and poisoning


 


Common:




Accidental injury, fracture, abrasion



Under treatment with gabapentin cases of acute pancreatitis were reported. Causality with gabapentin is unclear (see section 4.4).



Respiratory tract infections, otitis media, convulsions and bronchitis were reported only in clinical studies in children. Additionally, in clinical studies in children, aggressive behaviour and hyperkinesias were reported commonly.



4.9 Overdose



Acute, life-threatening toxicity has not been observed with gabapentin overdoses of up to 49 g. Symptoms of the overdoses included dizziness, double vision, slurred speech, drowsiness, lethargy and mild diarrhoea. All patients recovered fully with supportive care. Reduced absorption of gabapentin at higher doses may limit drug absorption at the time of overdosing and, hence, minimize toxicity from overdoses.



Although gabapentin can be removed by haemodialysis, based on prior experience it is usually not required. However, in patients with severe renal impairment, haemodialysis may be indicated.



An oral lethal dose of gabapentin was not identified in mice and rats given doses as high as 8000 mg/kg. Signs of acute toxicity in animals included ataxia, laboured breathing, ptosis, hypoactivity, or excitation.



5. Pharmacological Properties



5.1 Pharmacodynamic Properties



Pharmacotherapeutic groups: Other antiepileptics ATC code: N03AX12



The precise mechanism of action of gabapentin is not known.



Gabapentin is structurally related to the neurotransmitter GABA (gamma-aminobutyric acid) but its mechanism of action is different from that of several other active substances that interact with GABA synapses including valproate, barbiturates, benzodiazepines, GABA transaminase inhibitors, GABA uptake inhibitors, GABA agonists, and GABA prodrugs. In vitro studies with radiolabeled gabapentin have characterized a novel peptide binding site in rat brain tissues including neocortex and hippocampus that may relate to anticonvulsant and analgesic activity of gabapentin and its structural derivatives. The binding site for gabapentin has been identified as the alpha2-delta subunit of voltage-gated calcium channels.



Gabapentin at relevant clinical concentrations does not bind to other common drug or neurotransmitter receptors of the brain including GABAA, GABAB, benzodiazepine, glutamate, glycine or N-methyl-d-aspartate receptors.



Gabapentin does not interact with sodium channels in vitro and so differs from phenytoin and carbamazepine. Gabapentin partially reduces responses to the glutamate agonist N-methyl-D-aspartate (NMDA) in some test systems in vitro, but only at concentrations greater than 100 µM, which are not achieved in vivo. Gabapentin slightly reduces the release of monoamine neurotransmitters in vitro. Gabapentin administration to rats increases GABA turnover in several brain regions in a manner similar to valproate sodium, although in different regions of brain. The relevance of these various actions of gabapentin to the anticonvulsant effects remains to be established. In animals, gabapentin readily enters the brain and prevents seizures from maximal electroshock, from chemical convulsants including inhibitors of GABA synthesis, and in genetic models of seizures.



A clinical trial of adjunctive treatment of partial seizures in paediatric subjects, ranging in age from 3 to 12 years, showed a numerical but not statistically significant difference in the 50% responder rate in favour of the gabapentin group compared to placebo. Additional post-hoc analyses of the responder rates by age did not reveal a statistically significant effect of age, either as a continuous or dichotomous variable (age groups 3-5 and 6-12 years). The data from this additional post-hoc analysis are summarised in the table below:




















Response (


   


Age Category




Placebo




Gabapentin




P-Value




< 6 Years Old




4/21 (19.0%)




4/17 (23.5%)




0.7362




6 to 12 Years Old




17/99 (17.2%)




20/96 (20.8%)




0.5144



*The modified intent to treat population was defined as all patients randomised to study medication who also had evaluable seizure diaries available for 28 days during both the baseline and double-blind phases.



5.2 Pharmacokinetic Properties



Absorption



Following oral administration, peak plasma gabapentin concentrations are observed within 2 to 3 hours. Gabapentin bioavailability (fraction of dose absorbed) tends to decrease with increasing dose. Absolute bioavailability of a 300 mg capsule is approximately 60%. Food, including a high-fat diet, has no clinically significant effect on gabapentin pharmacokinetics.



Gabapentin pharmacokinetics are not affected by repeated administration. Although plasma gabapentin concentrations were generally between 2 µg/ml and 20 µg/ml in clinical studies, such concentrations were not predictive of safety or efficacy. Pharmacokinetic parameters are given in Table 3.



Table 3



Summary of gabapentin mean (%CV) steady-state pharmacokinetic parameters following every eight hours administration




























































Pharmacokinetic parameter




300 mg



(N = 7)




400 mg



(N = 14)




800 mg



(N=14)


   

 


Mean




%CV




Mean




%CV




Mean




%CV




Cmax (μg/ml)




4.02




(24)




5.74




(38)




8.71




(29)




tmax (hr)




2.7




(18)




2.1




(54)




1.6




(76)




T1/2 (hr)




5.2




(12)




10.8




(89)




10.6




(41)




AUC (0-8) μg•hr/ml)




24.8




(24)




34.5




(34)




51.4




(27)




Ae% (%)




NA




NA




47.2




(25)




34.4




(37)




Cmax = Maximum steady state plasma concentration



tmax = Time for Cmax



T1/2 = Elimination half-life



AUC(0-8) = Steady state area under plasma concentration-time curve from time 0 to 8 hours postdose



Ae% = Percent of dose excreted unchanged into the urine from time 0 to 8 hours postdose



NA = Not available


      


Distribution



Gabapentin is not bound to plasma proteins and has a volume of distribution equal to 57.7 litres. In patients with epilepsy, gabapentin concentrations in cerebrospinal fluid (CSF) are approximately 20% of corresponding steady-state trough plasma concentrations. Gabapentin is present in the breast milk of breast-feeding women.



Metabolism



There is no evidence of gabapentin metabolism in humans. Gabapentin does not induce hepatic mixed function oxidase enzymes responsible for drug metabolism.



Elimination



Gabapentin is eliminated unchanged solely by renal excretion. The elimination half-life of gabapentin is independent of dose and averages 5 to 7 hours.



In elderly patients, and in patients with impaired renal function, gabapentin plasma clearance is reduced. Gabapentin elimination-rate constant, plasma clearance, and renal clearance are directly proportional to creatinine clearance.



Gabapentin is removed from plasma by haemodialysis. Dosage adjustment in patients with compromised renal function or undergoing haemodialysis is recommended (see section 4.2).



Gabapentin pharmacokinetics in children were determined in 50 healthy subjects between the ages of 1 month and 12 years. In general, plasma gabapentin concentrations in children > 5 years of age are similar to those in adults when dosed on a mg/kg basis.



Linearity/Non-linearity



Gabapentin bioavailability (fraction of dose absorbed) decreases with increasing dose which imparts non-linearity to pharmacokinetic parameters which include the bioavailability parameter (F) e.g. Ae%, CL/F, Vd/F. Elimination pharmacokinetics (pharmacokinetic parameters which do not include F such as CLr and T1/2), are best described by linear pharmacokinetics. Steady state plasma gabapentin concentrations are predictable from single-dose data.



5.3 Preclinical Safety Data



Carcinogenesis



Gabapentin was given in the diet to mice at 200, 600, and 2000 mg/kg/day and to rats at 250, 1000, and 2000 mg/kg/day for two years. A statistically significant increase in the incidence of pancreatic acinar cell tumors was found only in male rats at the highest dose. Peak plasma drug concentrations in rats at 2000 mg/kg/day are 10 times higher than plasma concentrations in humans given 3600 mg/day. The pancreatic acinar cell tumors in male rats are low-grade malignancies, did not affect survival, did not metastasize or invade surrounding tissue, and were similar to those seen in concurrent controls. The relevance of these pancreatic acinar cell tumors in male rats to carcinogenic risk in humans is unclear.



Mutagenesis



Gabapentin demonstrated no genotoxic potential. It was not mutagenic in vitro in standard assays using bacterial or mammalian cells. Gabapentin did not induce structural chromosome aberrations in mammalian cells in vitro or in vivo, and did not induce micronucleus formation in the bone marrow of hamsters.



Impairment of Fertility



No adverse effects on fertility or reproduction were observed in rats at doses up to 2000 mg/kg (approximately five times the maximum daily human dose on a mg/m2 of body surface area basis).



Teratogenesis



Gabapentin did not increase the incidence of malformations, compared to controls, in the offspring of mice, rats, or rabbits at doses up to 50, 30 and 25 times respectively, the daily human dose of 3600 mg, (four, five or eight times, respectively, the human daily dose on a mg/m2 basis).



Gabapentin induced delayed ossification in the skull, vertebrae, forelimbs, and hindlimbs in rodents, indicative of fetal growth retardation. These effects occurred when pregnant mice received oral doses of 1000 or 3000 mg/kg/day during organogenesis and in rats given 500, 1000, or 2000 mg/kg prior to and during mating and throughout gestation. These doses are approximately 1 to 5 times the human dose of 3600 mg on a mg/m2 basis.



No effects were observed in pregnant mice given 500 mg/kg/day (approximately 1/2 of the daily human dose on a mg/m2 basis).



An increased incidence of hydroureter and/or hydronephrosis was observed in rats given 2000 mg/kg/day in a fertility and general reproduction study, 1500 mg/kg/day in a teratology study, and 500, 1000, and 2000 mg/kg/day in a perinatal and postnatal study. The significance of these findings is unknown, but they have been associated with delayed development. These doses are also approximately 1 to 5 times the human dose of 3600 mg on a mg/m2 basis.



In a teratology study in rabbits, an increased incidence of post-implantation fetal loss, occurred in doses given 60, 300, and 1500 mg/kg/day during organogenesis. These doses are approximately 1/4 to 8 times the daily human dose of 3600 mg on a mg/m2 basis.



6. Pharmaceutical Particulars



6.1 List Of Excipients



Capsule content:



Maize starch, pregelatinised



Maize starch



Talc



Silica, colloidal anhydrous



Capsule shell:



Gelatin



Sodium laurel sulphate



Titanium dioxide (E171)



6.2 Incompatibilities



Not applicable.



6.3 Shelf Life



36 months



6.4 Special Precautions For Storage



Store below 25°C.



Blisters: Store in the original package in order to protect from moisture.



Tablet containers: Keep the tablet container tightly closed in order to protect from moisture.



6.5 Nature And Contents Of Container



PVC/PE/PVDC//Alu blister



HDPE tablet container with PP (Polypropylene) child resistant closure.



Pack sizes:



Blister: 7, 15, 20, 30, 50, 60, 90, 100 and 200 capsules, hard



Tablet container : 50, 100 capsules, hard.



Not all pack sizes may be marketed.



6.6 Special Precautions For Disposal And Other Handling



No special requirements.



7. Marketing Authorisation Holder



Sandoz Ltd



Frimley Business Park,



Frimley,



Camberley,



Surrey,



GU16 7SR.



United Kingdom



8. Marketing Authorisation Number(S)



PL 04416/1052



9. Date Of First Authorisation/Renewal Of The Authorisation



16/02/2009



10. Date Of Revision Of The Text



11/2010