Ontology highlight
ABSTRACT: Background
"Udenafil" is a phosphodiesterase-5 inhibitor indicated for erectile dysfunction. "Dapoxetine" is a serotonin transport inhibitor indicated for premature ejaculation. The aim of the study reported here was to investigate the pharmacokinetic drug interaction between udenafil and dapoxetine in healthy male subjects.Methods
An open-label, three-treatment, six-sequence, three-period crossover study was performed in healthy male subjects. In varying sequences, each subjects received single oral doses of udenafil 200 mg, dapoxetine 60 mg, and both treatments. The periods were separated by a washout period of 7 days. Serial blood samples were collected up to 48 hours after dosing. The plasma concentrations of udenafil and dapoxetine were determined using a validated liquid chromatography-tandem mass spectrometry method. Pharmacokinetic parameters were obtained by non-compartmental analysis. Tolerability was assessed throughout the study.Results
Twenty-three healthy subjects completed the study. The geometric mean ratios of the area under the plasma concentration-time curve from time 0 to last measurable time point and measured peak plasma concentration for udenafil were 0.923 (90% confidence interval [CI]: 0.863-0.987) and 0.864 (90% CI: 0.789-0.947), respectively. The geometric mean ratios of the area under the plasma concentration-time curve from time 0 to last measurable time point and measured peak plasma concentration for dapoxetine were 1.125 (90% CI: 1.044-1.213) and 0.837 (90% CI: 0.758-0.925), respectively. There were no serious adverse events reported, and none of the subjects dropped out due to adverse events.Conclusion
Udenafil was found to have no clinically significant pharmacokinetic interactions with dapoxetine. The concurrent administration of udenafil and dapoxetine was generally well tolerated.
SUBMITTER: Kim YH
PROVIDER: S-EPMC4346016 | biostudies-literature | 2015
REPOSITORIES: biostudies-literature

Kim Yo Han YH Choi Hee Youn HY Lee Shi Hyang SH Jeon Hae Sun HS Lim Hyeong-Seok HS Bahng Mi Young MY Bae Kyun-Seop KS
Drug design, development and therapy 20150223
<h4>Background</h4>"Udenafil" is a phosphodiesterase-5 inhibitor indicated for erectile dysfunction. "Dapoxetine" is a serotonin transport inhibitor indicated for premature ejaculation. The aim of the study reported here was to investigate the pharmacokinetic drug interaction between udenafil and dapoxetine in healthy male subjects.<h4>Methods</h4>An open-label, three-treatment, six-sequence, three-period crossover study was performed in healthy male subjects. In varying sequences, each subjects ...[more]