Sexual activity may be a strain on your heart, especially if you have heart disease. Store mixed oral liquid in the refrigerator. Side effects Side effects of oral ED medicines are often mild. Sorry something went wrong with your subscription Please, try again in a couple of minutes Retry. Storage Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. To use the oral liquid: Shake the bottle well for at least 10 seconds before each use. Children younger than 1 year of age—Use and dose must be determined by your doctor.20 MG; 50 MG; 25 MG; Quantity 30 tablets. 30 tablets; 10 tablets; 6 tablets; 20 tablets; 12 tablets; sildenafil citrate. MG | Tablet | 30 tablets. Price Drop Below* At any Pharmacy near Prescription prices may vary from pharmacy to pharmacy and are subject to change. The pricing estimates given are based on the most recent. Here are answers to some frequently asked questions about drug price and sildenafil. oral tablet: 20 mg: liquid suspension: 10 mg per mL: intravenous (IV) bolus injection* 10 mg/ mL. The cost of sildenafil without insurance starts at $* for a quantity of 30, 20mg tablets, using a RxSaver coupon. The cost of sildenafil can vary in price depending on .