Acyclovir injection :- genital herpes simplex, mucocutaneous h simplex encephalitis, h simplex keratitis, herpes zoster, chicken pox etc. dosage : adults: herpes simplex: 200 mg 5 times daily at 4 hrs interval for 5 days herpes zoster: 800 mg 5 times daily 4 hrs interval for 7 days prophylaxis in suppression: 200 mg 4 times daily