Comparison of the clinical efficacy of daily use of L‐arginine, tadalafil and combined L‐arginine with tadalafil in the treatment of elderly patients with erectile dysfunction

This study aimed to evaluate the efficacy of the daily oral administrations of L-arginine, tadalafil and combined L-arginine with tadalafil in treatments of elderly patients with erectile dysfunction (ED). It was designed as a single-blind placebo-controlled clinical trial. It was conducted on 120 male patients aged ≥60 years old with ED. Patients were randomised classified into four groups (n = 30 each). Oral daily use of L-arginine (5 g),...