Is Acyclovir 200mg / Cream Safe? Dentist's Guide to Zovirax

# Is Acyclovir 200mg / Cream Safe? Dentist's Guide to Zovirax *Medical Review by Dr. Dhivakaran | 2026-06-14* ## Overview Acyclovir 200mg / Cream, commonly sold as **Zovirax, Acivir**, is a standard medication used in dentistry. ## How does it work? Stops the virus from replicating DNA. ## Who should take this? Patients with painful blisters on lips (Herpes Labialis). ## ⚠️ Safety Warning **Who should avoid it:** Kidney failure patients (Oral dose). **Pregnancy Safety:** Category B. Generally considered safe. ## Patient Instructions > Start as soon as you feel the first tingling sensation. ## References * KD Tripathi: Antivirals --- *Disclaimer: This content is for informational purposes only and does not substitute professional medical advice.*