That depends on the online pharmacy and is changing. If you prefer, you may contact the U. If you have an erection that lasts more than 4 hours, get medical help right away. Rarely reported side effects include: an erection that will not go away priapism. Topicals tend to have a lower risk of side effects compared to oral medications, Dr. Box , Mission, KS If your pharmacy does not participate, you may be able to submit a request for a rebate in connection with this Savings Offer.CHOOSE BRAND-NAME VIAGRA. The original little blue pill prescribed by doctors for over 20 years. Clinically proven to treat men with erectile dysfunction (ED) Ongoing . Walgreens $ retail Save 94% $ Get free savings directions Closest store Rite Aid. In , the United Kingdom made Viagra available over the counter to make it more available for people with ED who may be reluctant to visit a doctor. Learn more about .