Indications for: Nevirapine
Limitations of Use:
Adult females with CD4+ counts >250cells/mm3 or males with CD4+ counts >400cells/mm3: do not initiate unless benefit outweighs risk.
≥16yrs: Initially 200mg once daily for 14 days. If no rash occurs, increase to 200mg twice daily. If mild-to-moderate rash occurs during the 14-day lead in period, do not give twice-daily regimen until rash has resolved; lead-in dosing regimen should not be continued beyond 28 days, consider alternative regimen. If severe rash or hepatic event occurs, discontinue permanently. Max 400mg/day. Retitrate if stopped for >7days. Hemodialysis: give additional nevirapine 200mg dose after dialysis.
<15 days: not recommended. For oral susp: use dosing syringe or cup: ≥15 days: Initially 150mg/m2 once daily for 14 days; if no rash occurs increase to 150mg/m2 twice daily. If mild-to-moderate rash occurs during the 14-day lead in period, do not give twice-daily regimen until rash has resolved; lead-in dosing regimen should not be continued beyond 28 days, consider alternative regimen. If severe rash or hepatic event occurs, discontinue permanently. Max 400mg/day. Retitrate if stopped for >7 days.
Moderate to severe (Child-Pugh B or C) hepatic impairment. Use as part of occupational or non-occupational post-exposure prophylaxis regimens.
Life-threatening (including fatal) hepatotoxicity and skin reactions.
Risk of severe, life-threatening hepatotoxicity (eg, hepatic necrosis and failure, cholestatic hepatitis) or skin reactions (eg, Stevens-Johnson syndrome, toxic epidermal necrolysis, hypersensitivity). Monitor liver function (at baseline, intensively during 1st 18 weeks, and throughout therapy). Suspend and discontinue permanently if signs/symptoms of hepatitis, elevated transaminases combined with rash or other systemic symptoms (eg, fever, blistering, oral lesions, conjunctivitis, swelling, muscle/joint aches or general malaise) occurs; do not restart after recovery. Co-infected with hepatitis B or C. Hepatitis fibrosis or cirrhosis; monitor. Renal dysfunction. Elderly. Pregnancy. Nursing mothers: not recommended.
Non-nucleoside reverse transcriptase inhibitor.
Possible increased adverse reactions with concomitant efavirenz: not recommended. Concomitant other NNRTIs: not recommended. Potentiated by fluconazole (monitor). Antagonizes atazanavir, fosamprenavir without ritonavir, ketoconazole, itraconazole, boceprevir, telaprevir: not recommended, clarithromycin (consider alternative). Antagonized by St. John's wort, rifampin: not recommended. Antagonizes methadone (monitor for withdrawal symptoms; increase methadone dose if needed), oral contraceptives (use nonhormonal contraception; monitor). May antagonize other drugs metabolized by CYP3A4 or CYP2B6. Do not give lopinavir/ritonavir tabs or oral soln once daily with nevirapine (see full labeling). Monitor warfarin, carbamazepine, clonazepam, ethosuximide, rifabutin (caution), other CYP450 substrates.
Rash, nausea, headache, abnormal liver function tests, fatigue, fever, vomiting, myalgia, abdominal pain; fat redistribution, immune reconstitution syndrome. Children: also granulocytopenia.
Register pregnant patients exposed to nevirapine by calling (800) 258-4263.
Tabs—contact supplier; Susp—240mL; XR 100mg—90; 400mg—30