Purple Pill Viagra from Ruben_Miller's blog

The "Purple Pill Viagra" is a term that is sometimes used to refer to Sildenafil Citrate, which is the generic name for Viagra, a well-known medication used to treat erectile dysfunction (ED). Viagra (brand name) is typically known for being a blue pill, but "purple pill" may be a colloquial or incorrect term used by some to describe it. By blocking the action of PDE5, Sildenafil prevents the breakdown of cyclic GMP, which helps keep the blood vessels dilated and facilitates improved blood flow to the penile tissues.