An open-label, multicentre, randomized, crossover study comparing sildenafil citrate and tadalafil for treating erectile dysfunction in men naïve to phosphodiesterase 5 inhibitor therapy.

Abstract

OBJECTIVES To compare treatment preference, efficacy, and tolerability of sildenafil citrate (sildenafil) and tadalafil for treating erectile dysfunction (ED) in men naïve to phosphodiesterase 5 (PDE5) inhibitor therapy. PATIENTS AND METHODS This was an open-label, crossover study of sildenafil and tadalafil (taken as needed). After a 4-week baseline… (More)

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