Medicine Description zovirax 400 mg
Zovirax 400mg is a medication that functions as an antiviral agent, specifically targeting the herpes simplex virus (HSV) and varicella-zoster virus (VZV). The active ingredient, acyclovir, mimics the structure of deoxyguanosine, a building block of DNA. Upon entering the infected cells, acyclovir is phosphorylated into its active form by viral thymidine kinase and subsequently further phosphorylated by cellular enzymes. This active triphosphate form competes with deoxyguanosine triphosphate, thereby inhibiting viral DNA synthesis by terminating the growing DNA chain. This mechanism effectively halts the replication of the virus, leading to a reduction in the severity and duration of herpes outbreaks.
Indications and Uses of zovirax 400mg
- Treatment of herpes labialis (cold sores)
- Management of genital herpes
- Treatment of chickenpox
- Management of shingles (herpes zoster)
- Reduction of herpes simplex virus transmission
Side Effects of zovirax 400mg
- Nausea
- Diarrhea
- Headache
- Dizziness
- Fatigue
- Skin rash
- Renal impairment (with high doses)
Storage and Handling
Store Zovirax 400mg at room temperature, away from moisture and heat. Keep the medication in its original packaging and out of reach of children.
Patient Advice and Precautions
Patients should begin treatment at the first sign of an outbreak for optimal effectiveness. Ensure adequate hydration during treatment to help prevent kidney-related side effects. Inform healthcare providers of any pre-existing kidney conditions or other medications being taken, as interactions can occur. Vaccination against varicella-zoster virus is recommended for susceptible individuals.