ORIGINAL RESEARCH-ED PHARMACOTHERAPY: Do Food and Dose Timing Affect the Efficacy of Sildenafil? A Randomized Placebo‐Controlled Study

No significant loss of efficacy occurs when sildenafil is taken shortly before or with a meal. The duration of action for sildenafil may exceed 10 hours. Zinner N. Do food and dose timing affect the efficacy of sildenafil? A randomized placebo‐controlled study. J Sex Med 2007;4:137-144.