Available in both 50- and 100-milligram tablets from AccessRx.com, eDrugstore.md, and ViaMedic.com, Viagra’s cost for two tablets is the same regardless of strength. For men who find that a 50-milligram dose meets their needs, they can get a lower price per dose by ordering 100-milligram tablets and splitting them. Two 100-milligram tablets cost $95, or $47.50 per 100-milligram dose and $23.75 per 50-milligram dose. To lower your cost per dose, increase the size of your order. Ten 100-milligram tablets cost $423, or $42.30 per 100-milligram dose and $21.15 per 50-milligram dose.
The first PDE5 inhibitor to win FDA approval, Viagra first hit the U.S. market in 1998. Viagra was developed and is marketed by Pfizer. Although its U.S. patent for the drug will remain effective until April 2020, Pfizer in late 2013 reached an agreement with Teva Pharmaceuticals that will allow the latter to begin selling a generic version of Viagra in 2017. Elsewhere, Pfizer’s Viagra patent has expired in several key markets, including the European Union and South Korea. Its Chinese patent expires in July 2014.