Skip Ribbon Commands
Skip to main content

Oral antivirals

Drug Class: Commonly Known As: Category:

Oral antivirals - Dosage and How to Use

How should Oral antivirals be used?

  • Acyclovir: Take this medication with or without food. However, taking this medication with food may decrease stomach upset. 
  • Valaciclovir: Take this medication with or after food.
  • Drink plenty of fluids while taking this medication. 
  • When using this medication to suppress or control outbreaks, take it exactly as directed by your doctor. The dosage is based on your medical condition and response to therapy. 
  • This medication works best when the amount of drug in your body is kept at a constant level. Therefore, take this medication at evenly spaced intervals, at the same time each day. 
  • When treating an outbreak, complete the course of medication even if the symptoms have disappeared. 
  • Do not skip doses or stop treatment without your doctor’s approval. Stopping therapy earlier than recommended by your doctor may result in ineffective treatment.

What should I do if I miss a dose?

If you forget to take a dose, take it as soon as you remember. If it is almost time for the next dose, skip the missed dose. Then take your next dose at the usual time. 

Do not take two doses to make up for the missed dose.

What should I do if I overdose?

Oral antivirals - Additional Information

  • Updated on 10/31/2022 12:00:00 AM
  • Article contributed by PSS National Medication Information Workgroup PSS National Medication Information Workgroup
The information provided is not intended as medical advice. Terms of use. Information provided by SingHealth

Find Your Medicines