Sildenafil citrate, sold as Viagra, Revatio and under various other trade names, is a drug used to treat erectile dysfunction and pulmonary arterial hypertension (PAH). It was developed and is being marketed by the pharmaceutical company Pfizer. It acts by inhibiting cGMP specific phosphodiesterase type 5, an enzyme that regulates blood flow in the penis. Since becoming available in 1998, sildenafil has been the prime treatment for erectile dysfunction; its primary competitors on the market are tadalafil (Cialis) and vardenafil (Levitra). It is frequently called the 'blue pill'.
Many marketing studies have examined the impact of direct-to-consumer advertising of pharmaceuticals on sales and market shares. But in a new study, a researcher from The University of Texas at Dallas wanted to know whether drug advertising might have some unintended, population-level health consequences.
A new study from Lund University and Region Skåne in Sweden indicates that potency-enhancing PDE5 inhibitor drugs have an anti-cancer potential with the ability to improve the prognosis in patients with colorectal cancer.
Scientists report a change in why men seek help for sexual problems, with fewer men complaining about impotence (erectile dysfunction) and premature ejaculation, and more men, especially younger men, complaining about low sexual desire and curvature of the penis (Peyronie's disease).
Researchers discover what's behind nature's perhaps largest erection - which is not that big PLANT BIOLOGY.
Dr. Sudeep Taksali, an orthopedic surgeon, became worried that his 8-year-old daughter had already grown taller than his 12-year-old son. And sometimes she had an attitude more befitting a teenager. Something seemed wrong.
Package labels for Viagra, Cialis, and other erectile dysfunction drugs should inform patients that ED is a sign of potentially fatal artery disease, according to a petition the Physicians Committee for Responsible Medicine filed with the Food and Drug Administration on Feb. 10. Between 18 and 30 million men in the United States have ED.
In a new study scientists have reported that Sildenafil or Viagra pills used for erectile dysfunction could lead to longer lasting visual disturbances than known before. The study titled, “Ocular Side Effects of Sildenafil That Persist Beyond 24 h—A Case Series,” was published in the latest issue of the journal Frontiers in Neurology.
University of Manchester scientists investigating a possible treatment for fetal growth restriction, a condition in which babies grow poorly in the womb, have urged further caution on the use of Viagra.
The combination of two clinically approved drugs--Viagra and Plerixafor--rapidly and efficiently mobilizes blood stem cells from the bone marrow into the bloodstream in mice, researchers report October 10th in the journal Stem Cell Reports.
There's a perception that surgery to treat prostate cancer will spell the end of a man's sex life.
Young gay and bisexual men are frequent users of alkyl nitrites, or poppers, but few show signs of addiction, risky consumption habits or other psychosocial problems, a study shows.
Scientists from the University of Sheffield are part of an international collaboration to develop a new class of drugs to treat a common genetic kidney disease which is a major cause of kidney failure.
By age 50, nearly half of men experience some degree of erectile dysfunction. Advertisements for medications treating the condition have been all over mainstream media for years.
Viagra (sildenafil citrate), known for improving erectile dysfunction (ED), also effectively treats the prostate and lower urinary tract symptoms (LUTS) associated with prostate enlargement that often occur with ED, a Northwestern University study has found.
Normally your kidneys filter about 50 gallons of blood a day, remove such waste as salts and minerals, and concentrate it into urine. When you exercise or don't take in water, your blood "thickens" and instead of removing water, the kidney reverses the process, pulls in water from the body that would normally go into the urine, and puts it into the blood, thus maintaining water balance.
Sildenafil is the active ingredient in Viagra, Pfizer's erectile dysfunction medication used by more than 23 million men worldwide.