Can sildenafil 20 mg be used for erectile dysfunction?
Olivia Shea
Updated on March 03, 2026
Is Sildenafil 20mg an Effective Dose? Sildenafil is a pharmaceutical medication that is FDA-approved to treat erectile dysfunction (ED) in men and pulmonary arterial hypertension (PAH), a form of high blood pressure, in both men and women.
What is 20mg of sildenafil used for?
Sildenafil is used to treat high blood pressure in the lungs (pulmonary hypertension). It works by relaxing and widening the blood vessels in your lungs which allows the blood to flow more easily.
Is there a difference between Viagra and generic sildenafil?
The difference is that Viagra is a brand name medication invented and marketed by Pfizer, while sildenafil (or sildenafil citrate) is the generic name for the ingredient in Viagra that’s responsible for its positive effects on treating erectile dysfunction.
Which one should not receive sildenafil Viagra?
Do not take sildenafil if you: are taking medicines called nitrates for chest pain. have a serious heart or liver problem. have recently had a stroke or a heart attack. have low blood pressure.
Can you take 20 mg of sildenafil daily?
Adults—5 or 20 milligrams (mg) three times a day. Each dose should be taken about 4 to 6 hours apart. Children—Use and dose must be determined by your doctor.
How long does a 20 mg sildenafil last?
Sildenafil (Viagra) for ED (erectile dysfunction) lasts about four hours. It reaches peak concentrations in about an hour, so it’s best to take sildenafil 30 to 60 minutes before sex. While you can take it up to four hours beforehand, the effects will decrease after two hours or so.
How long does sildenafil last in the body?
On how long its effects may last, sildenafil has a half-life of about three to four hours. This simply means that the active amount of viagra in your body reduces by around half after three to four hours.
What kind of pill is RVT 20 Pfizer?
Pill with imprint RVT 20 Pfizer is White, Round and has been identified as Revatio 20 mg. It is supplied by Pfizer U.S. Pharmaceuticals Group.
What is the generic name for sildenafil?
Generic Name: sildenafil Pill with imprint RVT 20 Pfizer is White, Round and has been identified as Revatio 20 mg. Revatio is used in the treatment of pulmonary hypertension and belongs to the drug class agents for pulmonary hypertension.
Is it safe to take sildenafil 20 mg while pregnant?
Generic Name: sildenafil Pill with imprint RVT 20 Pfizer is White, Round and has been identified as Revatio 20 mg. It is supplied by Pfizer U.S. Pharmaceuticals Group. Revatio is used in the treatment of pulmonary hypertension and belongs to the drug class agents for pulmonary hypertension. There is no proven risk in humans during pregnancy.
What is the generic name for Revatio 20 mg?
Generic Name: sildenafil. Pill with imprint RVT 20 Pfizer is White, Round and has been identified as Revatio 20 mg.