Viagra is the popular name of the generic drug Sildenafil citrate and most people are even unaware that it is not solely sold in the market under the brand name Viagra. It is also available as Revatio and other drug names. It gained popularity because of being the cheapest generic Viagra.

Sildenafil is used in treatments for erectile dysfunction and pulmonary arterial hypertension or PAH. The generic drug is not the only drug of its kind available in the market that is used to treat the above illnesses. Its competitors in the market include tadalafil and vardenafil.

The generic Viagra costs about US$ 10 per tablet, usually, regardless of dosage in 25, 50 or 100 mg tablet form. It is available in a very hard coating that makes it hard for people to cut the tablet in half to lessen the dosage. Even with a pill cutter, it seems useless to cut the tablet in two.

Still, you can get the cheapest generic Viagra from online sites with promo offerings and discounts. Oftentimes you even get them for free. The cheapest generic Viagra can get low as much as US$ 1. The online pharmacy gain revenue from website advertising, SEO and other similar for of advertisements for their sponsors.