VIAGRA


ANAGEN LABS – 50mg, 100 tablets per bottle

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Sildenafil Citrate (Viagra) is a drug used to treat erectile dysfunction (impotence) in males and pulmonary arterial hypertension (PAH). Sildenafil Citrate treats erectile dysfunction and works by relaxing muscles and increases blood flow to particular areas of the body (in this case, the penis, specifically). Its effects last up to four hours. The most common side effects of Sildenafil Citrate are headache, facial flushing, and upset stomach. Rarely, blurred vision, or sensitivity to light may briefly occur. Sildenafil Citrate (Viagra) is solely active in relaxing muscles and increasing blood flow to the heart, lungs and penis due to PDE-5, yet vasodilation is not increased in other parts of the body.

Further Description

Sildenafil citrate, sold as Viagra, Revatio and under various other trade names, It was originally developed by British scientists and then brought to market by the US-based pharmaceutical company Pfizer.[1] It acts by inhibiting cGMP-specific phosphodiesterase type 5 (PDE5), an enzyme that promotes degradation of cGMP, which regulates blood flow in the penis. 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).

http://en.wikipedia.org/wiki/viagra