Zovirax

Medically Reviewed by HaVy Ngo, Pharm.D.

Last Reviewed: Jun 15, 2022

Pros & Cons


What are the pros and cons of Zovirax (Acyclovir)?

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  • Available as a generic at a lower price
  • Oral suspension is available for adults and children with problems swallowing.
  • Can be taken by children as young as two years old
  • Zovirax buccal tablets treat cold sores locally without causing systemic adverse effects.
  • Zovirax is typically effective for most people to shorten the duration and lessen the severity of outbreaks.
  • Available in different formulations
  • Well-tolerated by most people

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  • Zovirax is not a cure for HSV (Herpes Simplex Virus) or VZV (VaricellaZoster Virus).
  • Treatment dosing requires up to five times a day dosing which can be cumbersome.
  • Treatment with Zovirax will not prevent future outbreaks
  • People with kidney disease will need lower dosing based on their renal function.
  • It is unknown if taking Zovirax will lower your risk of passing HSV (genital herpes or cold sores) to someone else.