Adult Acute treatment of herpes 800 mg every 4 hr, 5 times daily (omit last night time dose) for 7-10 days.
Treatment of herpes simplex infections including genital herpes 200 mg every 4 hr, 5 times daily (omit last night time dose) for 7-10 days.
Immunocompromised patient (eg, after bone marrow transplant) May be increased to 400 mg every 4 hr, 5 times daily (omit last night time dose).
Suppression of herpes simplex infections including chronic suppressive therapy for recurrent disease 200 mg every 4-6 hr OR 400 mg every 12 hr. May titrate down to 200 mg every 8-12 hr. Treatment cycle: 6-12 mth.
Prophylaxis of herpes simplex infections Immunocompromised patient (eg after bone marrow transplant) 200 mg every 6 hr. May be increased to 400 mg if needed.
Treatment of varicella & herpes zoster 800 mg every 4 hr, 5 times daily (omit last night time dose) for 7 days.
Severely immunocompromised patient 800 mg every 6 hr for 6-12 mth.
Treatment of varicella infections Childn >6 yr 800 mg every 6 hr for 5 days,
2-6 yr 400 mg every 6 hr for 5 days.
Treatment & prophylaxis of herpes infections Immunocompromised childn ≥2 yr 200-400 mg every 4 hr, 5 times daily (omit last night time dose),
<2 yr 100-200 mg every 4 hr, 5 times daily (omit last night time dose).
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