AdWith RexMD you’re saving time and money with our Viagra delivery. Get started now. Reliable E.D. meds prescribed by real doctors. Get your free & private online visit today.If you experience chest pain, dizziness, or nausea during sexual activity, call your doctor immediately and avoid sexual activity until your doctor tells you otherwise. The effects may be increased because of slower removal of the medicine from the body. If you are taking sildenafil to treat erectile dysfunction, you should know that it does not cure erectile dysfunction or increase sexual desire. For treatment of erectile dysfunction: For oral dosage form tablets : Adults up to 65 years of age—50 milligrams mg as a single dose no more than once a day, 1 hour before sexual intercourse. Shake the liquid well for 10 seconds before each use to mix the medication evenly. Follow your doctor’s orders or the directions on the label. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.AdFree 2-day Shipping On Millions of Items. No Membership Fee. Shop Now! AdDon’t go to the pharmacy without checking prices at GoodRx® first. No commitment or fees. Find the lowest price in your neighborhood & use our free coupons to save up to 80%Service catalog: Prescription Coupons, Prescription Discounts, Online Doct. MinuteClinic can treat over different conditions. Find a walk in location near you today.But, you should still see your doctor to discuss other health issues. This medicine comes with a patient information leaflet. Ask your pharmacist for a list of the ingredients. There were some reports of headaches and nausea, however. If you need emergency medical care for a heart problem, it is important that your doctor knows when you last took sildenafil. Some illegal “street” drugs called “poppers” such as amyl nitrate, butyl nitrate, or nitrite. Proper Use Use sildenafil exactly as directed by your doctor.