Cialis

If you don't learn anything from this pharmacology lesson, at least remember this one thing: Call your doctor if your erection lasts longer than 4 hours. Seriously.
The cost of treating erectile dysfunction
Americans take comfort knowing that competition works to keep prices in check, which keeps businesses on their toes while they deliver price-trimming benefits to consumers. However, when it comes to the market for medication that treats erectile dysfunction, that assumption simply and shockingly does not apply.
You may remember a large study published last year that seemed to find a link between Viagra use and melanoma. The study, from Harvard Medical School Brigham and Women s Hospital, included data on more than 51,000 men aged 40-75, and reported recent use of Viagra (sildenafil) with a near-doubling of the risk of malignant melanoma.
Men: as if erectile dysfunction isn t bad enough, possibly more bad news. There may be a link between ED drugs (Viagra/sildenafil anyway) and the dangerous skin cancer, malignant melanoma. No cause-and-effect shown yet, but the correlation is worrisome.