title: [Patients ask for sildenafil--how to treat?].
authors.affiliation: OYS:n kirurgian klinikka 90200 Oulu. olavi.lukkarinen@oulu.fi
authors.forename: O
authors.initials: O
authors.lastname: Lukkarinen
authors.forename: J
authors.initials: J
authors.lastname: Tapanainen
mesh_terms: D015106:3',5'-Cyclic-GMP Phosphodiesterases / Q000037:antagonists & inhibitors*; D007172:Erectile Dysfunction / Q000175:diagnosis / Q000188:drug therapy*; D006801:Humans; D008297:Male; D010726:Phosphodiesterase Inhibitors / Q000009:adverse effects / Q000627:therapeutic use*; D010879:Piperazines / Q000009:adverse effects / Q000627:therapeutic use*; D011687:Purines; D000068677:Sildenafil Citrate; D013450:Sulfones
chemical_list: D010726:Phosphodiesterase Inhibitors; D010879:Piperazines; D011687:Purines; D013450:Sulfones; D000068677:Sildenafil Citrate; D015106:3',5'-Cyclic-GMP Phosphodiesterases