Other uses for this medicine This medication is sometimes prescribed for other uses; ask your doctor or pharmacist for more information. If you are taking sildenafil for PAH, take the missed dose as soon as you remember it. Your doctor will tell you not to take sildenafil if you are taking street drugs containing nitrates. Sildenafil treats PAH by relaxing the blood vessels in the lungs to allow blood to flow easily. Brand names Why is this medication prescribed? Rarely reported side effects include: an erection that will not go away priapism. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand.Valid at all major chains including Walgreens, CVS Pharmacy, Target, WalMart Pharmacy, Duane Reade and 65, pharmacies nationwide. No manufacturer promotions could be . Sildenafil (Liqrev, Revatio) is used to improve the ability to exercise in adults (Liqrev, Revatio) and children 1 year of age and older (Revatio) with pulmonary arterial Missing: walmart. DRUG_DESCRPTION Compare DRUG_NAME prices and find coupons that could save you up to 80% instantly at pharmacies near you such as CVS, Walgreens, Walmart, and .