Both Zimivir 1000 (containing Valacyclovir) and Ocuvir 400 DT (containing Acyclovir) are effective antiviral medications used to treat chickenpox. Zimivir is absorbed better by the body, meaning you generally need to take it less frequently (usually three times a day). In contrast, Ocuvir 400 DT requires more frequent dosing (often five times a day) to be effective against chickenpox. The right choice depends on your age, weight, and kidney health. Please do not self-medicate; consult your doctor immediately so they can prescribe the safest, most effective drug and dosage for your specific condition.