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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'.
Patients with COVID-19 pneumonitis and moderate to severe ARDS treated with sildenafil

Patients with COVID-19 pneumonitis and moderate to severe ARDS treated with sildenafil

Why cheap, older drugs that might treat covid never get out of the lab

Why cheap, older drugs that might treat covid never get out of the lab

Generic version of Viagra could be the long-waited remedy for dogs with megaesophagus

Generic version of Viagra could be the long-waited remedy for dogs with megaesophagus

Study examines whether viagra-like drug may be effective in treating vascular dementia

Study examines whether viagra-like drug may be effective in treating vascular dementia

Existing drug reduces obesity and fatty liver in mice without changes in food intake or daily activity

Existing drug reduces obesity and fatty liver in mice without changes in food intake or daily activity

Topical drug regenerates, restores function of erectile nerves damaged by radical prostatectomy

Topical drug regenerates, restores function of erectile nerves damaged by radical prostatectomy

Study examines the impact of Viagra drug advertising on birth rates

Study examines the impact of Viagra drug advertising on birth rates

Potency-enhancing drugs show ability to improve prognosis in patients with colorectal cancer

Potency-enhancing drugs show ability to improve prognosis in patients with colorectal cancer

Study reports a change in why men seek help for sexual problems

Study reports a change in why men seek help for sexual problems

Newfound knowledge may prove valuable to understand human nerve cells

Newfound knowledge may prove valuable to understand human nerve cells

Hormone blocker shocker: Drug costs 8 times more when used for kids

Hormone blocker shocker: Drug costs 8 times more when used for kids

ED drug labels should inform patients about plant-based diet's ability to fight disease

ED drug labels should inform patients about plant-based diet's ability to fight disease

Viagra may cause long lasting visual disturbances finds study

Viagra may cause long lasting visual disturbances finds study

Scientists urge further caution on use of Viagra for fetal therapy

Scientists urge further caution on use of Viagra for fetal therapy

Viagra enables rapid and efficient hematopoietic stem cell mobilization in mice

Viagra enables rapid and efficient hematopoietic stem cell mobilization in mice

Men with prostate cancer can have healthy sex lives after surgery

Men with prostate cancer can have healthy sex lives after surgery

New study welcomes TGA’s decision to step back from prohibiting poppers

New study welcomes TGA’s decision to step back from prohibiting poppers

Scientists develop new class of drugs to treat hereditary kidney disease

Scientists develop new class of drugs to treat hereditary kidney disease

Erectile dysfunction can affect a man's quality of life, but treatable

Erectile dysfunction can affect a man's quality of life, but treatable

Viagra effectively treats urinary tract symptoms associated with prostate enlargement

Viagra effectively treats urinary tract symptoms associated with prostate enlargement