title: Efficacy and safety of flexible-dose oral sildenafil citrate (Viagra) in the treatment of erectile dysfunction in Brazilian and Mexican men.
abstract: A 12-week, double-blind, placebo-controlled, multicenter study evaluated the efficacy and safety of flexible-dose sildenafil citrate (Viagra) treatment (25, 50 or 100 mg) in Brazilian and Mexican men with erectile dysfunction (ED) of broad-spectrum etiology. Efficacy was assessed on the basis of responses to the 15-item International Index of Erectile Function (IIEF) questionnaire, completed at baseline and after 12 weeks of treatment. At end point, mean scores for all IIEF domains of sexual function (erectile function, orgasmic function, sexual desire, intercourse satisfaction and overall satisfaction) were significantly (P<0.0001) higher in the sildenafil group (n=109) than in the placebo group (n=105). These findings confirm the significant increases in frequency of penetration and frequency of maintained erections reported previously. Sildenafil treatment was well tolerated. The most common adverse events were headache and flushing. In conclusion, sildenafil is a well-tolerated and effective treatment for ED of broad-spectrum etiology in Latin American men.
authors.affiliation: Hospital Albert Einstein, São Paulo, Brazil. Glinas@originet.comb.br
authors.forename: S
authors.initials: S
authors.lastname: Glina
authors.forename: E
authors.initials: E
authors.lastname: Bertero
authors.forename: J
authors.initials: J
authors.lastname: Claro
authors.forename: R
authors.initials: R
authors.lastname: Damião
authors.forename: G
authors.initials: G
authors.lastname: Faria
authors.forename: A
authors.initials: A
authors.lastname: Fregonesi
authors.forename: J
authors.initials: J
authors.lastname: Jaspersen
authors.forename: A
authors.initials: A
authors.lastname: Mendoza
authors.forename: D
authors.initials: D
authors.lastname: Mattos
authors.forename: L C
authors.initials: LC
authors.lastname: Rocha
authors.forename: M
authors.initials: M
authors.lastname: Sotomayor
authors.forename: C
authors.initials: C
authors.lastname: Telöken
authors.forename: S
authors.initials: S
authors.lastname: Ureta
authors.forename: E
authors.initials: E
authors.lastname: Zonana
authors.forename: F
authors.initials: F
authors.lastname: Ugarte
mesh_terms: D000284:Administration, Oral; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001938:Brazil; D004305:Dose-Response Relationship, Drug; D004311:Double-Blind Method; D007172:Erectile Dysfunction / Q000188:drug therapy*; D006801:Humans; D007989:Libido / Q000187:drug effects; D008297:Male; D008800:Mexico; D008875:Middle Aged; D009948:Orgasm / Q000187:drug effects; D017060:Patient Satisfaction; D010879:Piperazines / Q000008:administration & dosage* / Q000009:adverse effects / Q000627:therapeutic use; D011687:Purines; D012449:Safety; D000068677:Sildenafil Citrate; D013450:Sulfones; D016896:Treatment Outcome; D014665:Vasodilator Agents / Q000008:administration & dosage* / Q000009:adverse effects / Q000627:therapeutic use
chemical_list: D010879:Piperazines; D011687:Purines; D013450:Sulfones; D014665:Vasodilator Agents; D000068677:Sildenafil Citrate