Acyclovir 400 mg-ZEN, white, round, Acyclovir 200 mg-WAT, blue/turquoise, capsuleThe usual adult dosage is 400 mg twice daily. Alternative dosages may range from 200 mg 3 times dailyI am on my 5th lot of acyclovir, starting with 1000 mg per day, increasing to 2,400 per day and 2 weeks...