The Role of Initial Success Rates and Other Factors in Determining Reliability of Outcomes of Phosphodiesterase Inhibitor Therapy for Erectile Dysfunction: A Pooled Analysis of 17 Placebo-Controlled Trials of Tadalafil for Use as Needed
The Journal of Sexual Medicine, 08/21/2012
Sontag A et al. – The findings affirm the reliability of successful outcomes with tadalafil treatment and that first–attempt success is a critical factor affecting subsequent outcomes. The results further show that even among men who did not succeed on first attempt, a substantial proportion will have successful outcomes if treatment is maintained.