Online Zovirax (Acyclovir)
Antivirals • Educational only; not medical advice. Prescriptions at clinician discretion.
Overview
Acyclovir, marketed as Zovirax, is an antiviral agent used to manage infections caused by herpes viruses. It selectively inhibits viral DNA polymerase, terminating viral DNA elongation. Approved in the 1980s, it remains a cornerstone therapy for HSV and VZV infections.
Uses
Treats genital herpes, cold sores, shingles, and chickenpox. It is also used prophylactically in immunocompromised patients. Available in oral, topical, ophthalmic, and intravenous formulations.Dosage & Administration
Typical oral dose for HSV: 200–400 mg five times daily for 5–10 days; for shingles: 800 mg five times daily for 7–10 days. Adequate hydration prevents renal crystallization.Side Effects & Warnings
Common: headache, nausea, diarrhea. Rare: renal impairment and neurologic effects (tremor, confusion). Caution in renal disease and elderly patients.Patient Considerations
Initiate treatment promptly after symptom onset. Does not prevent transmission—safe-sex practices remain essential.Ready for next steps?
Frequently asked questions
What’s the difference between Zovirax and Valtrex?
Valtrex is a prodrug of acyclovir with better absorption, allowing fewer daily doses.
Can I use Zovirax cream and tablets together?
Yes, topical and oral forms may be combined for faster healing.
Is long-term use safe?
Yes, with periodic monitoring of kidney function for chronic suppressive therapy.
Government / NIH sources
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