Makers of erectile dysfunction drugs try to find new niches
(NEWSER) - Viagra’s chemical patent expires next year, likely opening the playing field to cheaper generic versions of the pill—and in a $5 billion industry, the makers of the erectile dysfunction drug are racing to stay ahead of the competition. Pfizer recently began selling a chewable form of Viagra in Mexico, the developing world’s biggest market for the drug, reports the New York Times . Viagra Jet could make its way to other developing markets, but it’s not yet clear whether it will land in the US. More»