What is Revatio?

Sildenafil, sold as Viagra and other trade names, is a medication used to treat erectile dysfunction and pulmonary arterial hypertension.

Common side effects include headaches and heart burn, as well as flushed skin. Caution is advised in those who have cardiovascular disease. Rare but serious side effects include prolonged erections, which can lead to damage to the penis, and sudden-onset hearing loss. Sildenafil should not be taken by people who take nitrates such as nitroglycerin, as this may result in a severe and potentially fatal drop in blood pressure.

It acts by inhibiting cGMP-specific phosphodiesterase type 5 (PDE5), an enzyme that promotes degradation of cGMP, which regulates blood flow in the penis.

It was originally discovered by Pfizer scientists Andrew Bell, David Brown, and Nicholas Terrett. Since becoming available in 1998, sildenafil has been a common treatment for erectile dysfunction; its primary competitors are tadalafil (Cialis) and vardenafil (Levitra).

Questions and answers on "Revatio"

I'm taking Adalat(60 mg) for HBP and get reading of 140/95 and when I use Viagara (about 25 mg)my blood pressure goes down to 130/85. What would be...

doctor1 MD

Brief Answer:
Nothing dangerous, no serious blood pressure fall

Detailed Answer:
Dear Sir,

Viagra usually lowers blood pressure. In your case it is...

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I had a pfo closure done almost a year ago. I was also diagnosed with pulminary hypertention. The only medication I currently take is Revatio, My...

doctor1 MD

Hi friend,
Welcome to Health Care Magic

Atrial arrhythmias are common after foramen closure...Irregular heart beats need to be DOCUMENTED by...

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High level of Urea & Creatinine
My mother has some heart failure and she began to take Revatio but then from February she got...

doctor1 MD

Hi Ruthy,
Thanks for writing in.
I do understand your concern. From the scenario that you have described, your mother has renal failure. This...

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