Anticoagulants: may increase or reduce effect of warfarin
Antidepressants: concentration reduced by St John’s wort – avoid concomitant use
Antifungals: concentration of ketoconazole reduced – avoid concomitant use; concentration increased by fluconazole; possibly reduced caspofungin concentration – may need to increase caspofungin dose
Antivirals: concentration of indinavir and efavirenz reduced and possibly amprenavir, lopinavir and atazanavir – avoid concomitant use with atazanavirOestrogens and progestogens: accelerated metabolism (reduced contraceptive effect)
ADMINISTRATION
Reconstition
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Route
Oral
Rate of Administration
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Comments
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OTHER INFORMATION
Little data available on the use of nevirapine in renal failure, but need for dose adjustment is unlikely due to nevirapine being predominantly metabolised in the liver, and the inactive metabolites excreted in the urine. Use with cautionThere was a preliminary study of haemodialysis patients which showed that a normal dose was not associated with increased side effects.