Acyclovir (Zovirax) is an inexpensive drug used to treat or prevent infections caused by certain kinds of viruses. Examples of these infections include herpes and shingles. This drug is slightly more popular than comparable drugs. It is available in generic and brand form. Generic acyclovir is covered by most Medicare and insurance plans, but manufacturer and pharmacy coupons can help offset the cost.

Get Zovirax for as low as $251.79, which is 44% off the average retail price of $450.97 for the most common version, by using a GoodRx coupon.