Viagra was initially studied for use in hypertension (high blood pressure) and angina pectoris (a form of ischaemic cardiovascular disease).
Pfizer therefore decided to market cheap viagra for erectile dysfunction, rather than for angina.
Even though generic Viagra is only available by prescription from a doctor, it was advertised directly to consumers on US TV (famously being endorsed by Bob Dole and Football star Pele).
The "Viagra" name has become so well known that many fake aphrodisiacs now call themselves "online Viagra" or are presented as blue tablets imitating the shape and colour of Pfizer's product.
Name-brand buy Viagra is not scored and a fairly hard coating makes it more difficult to accurately cut the pills in half, even with a pill cutter.
Best Viagra is one of many options for treating ED that you and your doctor can consider.
