Question:

hello. what is the chemical formula of viagra. i need to know

by Guest4755  |  12 years, 10 month(s) ago

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hello. what is the chemical formula of viagra. i need to know??
i have found an answer here - http://tinyurl.com/answerhowdoesviagraworka but i'm not sure if it's right

 Tags: chemical, formula, hello, VIAGRA

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1 ANSWERS

  1. amomipais82
    HI,
    Sildenafil citrate, sold as Viagra, Revatio and under various other trade names, is a drug used to treat erectile dysfunction and pulmonary arterial hypertension (PAH). It was developed and is being marketed by the pharmaceutical company Pfizer. It acts by inhibiting cGMP specific phosphodiesterase type 5, an enzyme that regulates blood flow in the p***s. Since becoming available in 1998, sildenafil has been the prime treatment for erectile dysfunction; its primary competitors on the market are tadalafil (Cialis) and vardenafil (Levitra).

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