It used to be quite expensive, but it went off patent a year or so ago and the price is dropping. Tell the doctor and/or pharmacist you want a
generic and not Valtrex, the trade
name. The usual dose for suppressive treatment in people with infrequent outbreaks is 500 mg once daily, but the 1 gram (1000 mg) tablet is not double the price -- so you can save still more by asking for the 1 g tablets and breaking them in half. (This is good advice for many expensive drugs.