Zovirax is an antiviral medicine that stops certain viruses from growing.
The typical adult dose is 200 mg taken five times a day, about every 4 hours while you are awake, for 5 days. Your doctor may adjust this dose for your specific condition.
Take the tablets by mouth with water, as directed by your doctor.
The maximum daily dose can be up to 4000 mg, but your doctor will tell you the right dose for you. Remember to drink plenty of fluids during treatment.