Like the reliable erection its new product promised, Pfizer's stock had risen 21% in the previous two months. Some urologists bought rubber stamps... Read more
Levitra is a phosphodiesterase inhibitor. It works by helping to relax muscles and increase blood flow into the penis during sexual stimulation.... Read more
Cialis (tadalafil) relaxes muscles and increases blood flow to particular areas of the body.
Cialis is used to treat erectile dysfunction... Read more