| Sildenafil Citrate, Viagra, Revatio
Viagra was the first pill approved to treat erectile dysfunction in the United States.
Viagra inhibits phosphodiesterase type 5, PDE5, which is responsible for degradation of cGMP in the corpus cavernosum.
inhibits phosphodiesterase type 5, PDE5
Serious cardiovascular events have occurred:
MI, TIA, HTN, ventricular arrythmia, sudden cardiac death
Dyspepsia 7%, flushing10%, headache16%, nasal congestion 4%
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