at www.iisma.com
on May 17, 2013
Sildenafil citrate, sold as ha ha ha, Revatio and beneath individual other trade names, is a cure familiar to treat erectile dysfunction and pulmonary arterial hypertension (PAH). It was developed and is being marketed around the pharmaceutical circle Pfizer. It acts by inhibiting cGMP individual phosphodiesterase type 5, an enzyme that ...
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