title: Sildenafil citrate (VIAGRA): an oral treatment for erectile function with activity for up to four hours' duration.
authors.affiliation: Leeds General Infirmary, UK.
authors.forename: I
authors.initials: I
authors.lastname: Eardley
authors.forename: J
authors.initials: J
authors.lastname: Brooks
authors.forename: P K
authors.initials: PK
authors.lastname: Yates
authors.forename: P
authors.initials: P
authors.lastname: Ellis
authors.forename: M
authors.initials: M
authors.lastname: Boolell
mesh_terms: D000284:Administration, Oral; D000328:Adult; D000368:Aged; D018592:Cross-Over Studies; D004305:Dose-Response Relationship, Drug; D004311:Double-Blind Method; D007172:Erectile Dysfunction / Q000188:drug therapy*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010410:Penile Erection / Q000187:drug effects*; D010726:Phosphodiesterase Inhibitors / Q000008:administration & dosage*; D010879:Piperazines / Q000008:administration & dosage*; D010991:Plethysmography; D011687:Purines; D000068677:Sildenafil Citrate; D013450:Sulfones
chemical_list: D010726:Phosphodiesterase Inhibitors; D010879:Piperazines; D011687:Purines; D013450:Sulfones; D000068677:Sildenafil Citrate