Timing of Dose Relative to Sexual Intercourse Attempt in Previous Sildenafil Citrate Users Treated with Tadalafil

Following the dosing instructions reflecting tadalafil's extended period of effectiveness, men with a history of established sildenafil use changed their dose‐attempt behavior when treated with tadalafil. Glina S, Sotomayor M, Gatchalian E, Yaman O, Dyachkova Y, Markey C, and V Kopernicky. Timing of dose relative to sexual intercourse attempt in previous sildenafil citrate users treated with tadalafil. J Sex Med 2006;3:309-319.