Valeant Pharmaceuticals, Inc.
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Valeant Pharmaceuticals, Inc. Drugs
Administration of Permax should be initiated with a daily dosage of 0.05 mg for the first 2 days. The dosage should then be gradually increased by 0.1 or 0.15 mg/day every third day over the next 12 days of therapy. The dosage may then be increased by 0.25 mg/day every third day until an optimal therapeutic dosage is achieved.
Permax is usually administered in divided doses 3 times per day. During dosage titration, the dosage of concurrent l-dopa/carbidopa may be cautiously decreased.
In clinical studies, the mean therapeutic daily dosage of Permax was 3 mg/day. The average concurrent daily dosage of l-dopa/carbidopa (expressed as l-dopa) was approximately 650 mg/day. The efficacy of Permax at doses above 5 mg/day has not been systematically evaluated. Doses of pergolide above 5 mg/day are not recommended (seeWARNINGS).
The recommended dose of INFERGEN for treatment of chronic HCV infection is 9 mcg TIW administered SC as a single injection for 24 weeks. At least 48 hours should elapse between doses of INFERGEN. (Seeillustrated MEDICATION GUIDE for instructions.)
Patients who tolerated previous interferon therapy and did not respond or relapsed following its discontinuation may be subsequently treated with 15 mcg of INFERGEN TIW administered SC as a single injection for up to 48 weeks. (Seeillustrated MEDICATION GUIDE for instructions.)
There are significant differences in specific activities among interferons. Healthcare providers should be aware that changes in interferon brand may require adjustments of dosage and/or change in route of administration. Patients should be warned not to change brands of interferon without medical consultation. Patients should also be instructed by their physician not to reduce the dosage of INFERGEN prior to medical consultation.
For patients who experience a severe adverse reaction on INFERGEN, dosage should be withheld temporarily. If the adverse reaction does not become tolerable, therapy should be discontinued. Dose reduction to 7.5 mcg may be necessary following an intolerable adverse event. In the pivotal study, 11% of patients (26/231) who initially received INFERGEN at a dose of 9 mcg (0.3 mL) were dose-reduced to 7.5 mcg (0.25 mL).
If adverse reactions continue to occur at the reduced dosage, the physician may discontinue treatment or reduce dosage further. However, decreased efficacy may result from continued treatment at dosages below 7.5 mcg.
During subsequent treatment for 48 weeks with 15 mcg of INFERGEN, up to 36% of patients required dose reductions in 3 mcg increments.
Administration of INFERGEN
If home use is determined to be desirable by the physician, instructions on appropriate use should be given by a healthcare professional. After administration of INFERGEN, it is essential to follow the procedure for proper disposal of syringes and needles. See theMEDICATION GUIDE for detailed instructions.
Just prior to injection, INFERGEN may be allowed to reach room temperature.
Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration; if particulates or discoloration are observed, the container should not be used.
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