Expired acyclovir?

Short answer: don’t take expired acyclovir.

Why: Expiration means the medicine’s potency isn’t guaranteed anymore. It may be less effective at treating an infection, and you wouldn’t know that it’s delivering the right dose. It’s not usually dangerous to take after expiration, but it’s not recommended.

What to do now:
- Do not use the expired medication.
- If you need acyclovir (for shingles, herpes, etc.), contact your clinician or pharmacist to get a fresh prescription or supply.
- For disposal: don’t flush meds unless the label or local guidelines say to. Best options are:
- Use a community drug take-back program or event.
- If none are available, mix the pills/capsules/cream with an undesirable substance (cat litter, coffee grounds) in a sealed container, then throw in the trash. Remove or obscure the label to protect your privacy.
- Storage: Keep medications in their original container, closed tightly, at room temperature away from moisture and heat (not in the bathroom).

If you accidentally took a small amount after expiry and feel unwell, or you’re unsure what to do, contact a pharmacist or your healthcare provider for guidance. If you’re currently dealing with an infection, a fresh prescription is important for effective treatment. If you want, tell me your location and I can help you find a disposal option or a nearby pharmacy to renew your supply.