title: Impotence, smoking, and beta-blocking drugs.
abstract: Four patients complaining of erectile dysfunction and using tobacco or propranolol were examined with penile blood pressure measurements and Doppler recordings, calculating the penile acceleration ratio (PAR). After a change in regimen, erectile capacity was restored, PAR returned to normal, and blood pressure measurements revealed increased systolic penile blood pressure in three patients. The changes, especially in PAR, indicate a marked penile vascular reaction during smoking and beta-blocking treatment in these men.
mesh_terms: D000328:Adult; D007172:Erectile Dysfunction / Q000139:chemically induced / Q000209:etiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011433:Propranolol / Q000009:adverse effects*; D012907:Smoking / Q000150:complications*
chemical_list: D011433:Propranolol