Sildenafil is used to treat male sexual function problems (impotence or erectile dysfunction-ED). In combination with sexual stimulation, sildenafil works by increasing blood flow to the penis to help a man get and keep an erection. This drug does not protect against sexually transmitted diseases (such as HIV, hepatitis B, gonorrhea, syphilis). Consult your doctor or pharmacist for more details. Read the Patient Information Leaflet provided by your pharmacist before you start taking sildenafil and each time you get a refill. If you have any questions, ask your doctor or pharmacist. To treat erectile dysfunction-ED, take this drug by mouth as directed by your doctor, usually as needed. Take sildenafil at least 30 minutes, but no more than 4 hours, before sexual activity (1 hour before is the most effective). A high-fat meal may delay how quickly the drug begins to work. Viagra is the brand name for a medicine known as Sildenafil which has been proven to be effective for the treatment of erectile dysfunction. Sildenafil is the active ingredient and has also been available since 2013 as a generic drug. A generic drug contains the same active ingredient as a branded drug and is medically equivalent but can be produced by any generic manufacturer. Viagra was one of the first treatments to be approved for the treatment of erectile dysfunction and has been used by men across the world for over a decade with excellent results. Pfizer was the original manufacturer for Viagra and developed a patent on the product in 1996. Originally Viagra was used for the treatment of heart disease, but during clinical trials it was noticed that it also helped treat erectile dysfunction. In 1998, Pfizer received FDA approval to license the product for the treatment of erectile dysfunction.
Apr 4, 2016. Generic sildenafil citrate comes in preparations of 25mg, 50mg and 100mg. Your first prescription will usually be for 50mg, which is the recommended starting dose. At this dose you and your doctor can monitor your physical reaction to the medicine and address any side effects early on. If 50mg is very. Oct 26, 2017. So, Sildenafil is both Viagra and something else, Revatio. The Sildenafil in Viagra is made in 3 doses 25 mg, 50 mg, and 100 mg and is used for the treatment of Erectile Dysfunction ED. The Sildenafil in Revatio comes only in a 20 mg dose and, in that dose, has been approved for the treatment of.