ZIMIVIR® 500 contains valacyclovir hydrochloride, an antiviral medication that is rapidly converted into acyclovir after oral administration. It works by interfering with viral DNA synthesis, helping limit the replication and spread of susceptible herpes viruses.

Valacyclovir is commonly prescribed for the management of herpes simplex virus (HSV-1 and HSV-2) infections, varicella-zoster virus (VZV) infections including shingles, and other herpesvirus-related conditions when clinically appropriate.

Treatment duration, dosage, and monitoring should always be determined by a qualified healthcare professional based on the patient’s age, body weight, medical history, diagnosis, and treatment objectives.