GoodRx is the easiest way to find pharmacies near you. Get store info, hours of operation, and save on your prescriptions with GoodRx. You can still find a coupon that works at .Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. What side effects can this medication cause? You can take sildenafil with or without food. If you are taking sildenafil to treat PAH, you will probably take sildenafil three times a day with or without food. Tell your doctor if sildenafil is not working well or if you are experiencing side effects. Your doctor may need to change the doses of your medications or monitor you carefully for side effects. Shake the liquid well for 10 seconds before each use to mix the medication evenly.Save up to 89% on Viagra (sildenafil) prescriptions at a Kroger Pharmacy near you with the Kroger Rx Savings Club. Powered by GoodRx! Extra 15% off $30 sitewide with code SAVE15; Clip your mystery deal! BOGO 50% off select Walgreens health & wellness. The recommended dosage of Viagra for erectile dysfunction (ED) is 50 mg, taken as needed about 1 hour before sexual activity. You can take it 30 minutes to 4 hours before sexual activity. And you.Also tell your doctor if you or any of your family members have or have ever had an eye disease such as retinitis pigmentosa an inherited eye condition that causes loss of vision or if you have ever had sudden severe vision loss, especially if you were told that the vision loss was caused by a blockage of blood flow to the nerves that help you see. Other uses for this medicine This medication is sometimes prescribed for other uses; ask your doctor or pharmacist for more information. Follow the manufacturer’s directions to use and clean the oral syringe. If you are taking sildenafil to treat PAH, you will probably take sildenafil three times a day with or without food. Do not take more or less of it or take it more often than prescribed by your doctor. This site is intended only for U.