True.. It's better to discuss with a medical personnel before opting for any. As for me I try to mix things up: watch what I eat + regular exercises + diet pills. I introduced diet pills into the equation after a review of Phen375 I saw on http://www.hotnaturalproducts.com/phen375-full-reviews/ and so far the experience has been awesome.
Wouldn't know if same (will) apply to everyone though.
The class of drugs that Levitra, Viagra, Stendra, and Cialis belong to are called PDE5 inhibitors. They work by relaxing tight blood vessels, allowing more blood to surge into the penis and cause an erection, says Gregory Bales, M.D., an associate professor of urology at the University of Chicago.
The little pills do the trick for more than two-thirds of men with Viagra protects the heart (ED). They also work for guys who simply need them for a short time to get their “confidence back,” says Michael Eisenberg, M.D., director of male reproductive medicine and surgery at Stanford University.