Korean J Androl.
2009 Apr;27(1):49-54.
Clinical Trial with Tamsulosin and Doxazosin for the Treatment of Premature Ejaculation in Patients with Co-morbid LUTS: a Comparative Study
- Affiliations
-
- 1Department of Urology, Bundang CHA Hospital, College of Medicine, Pochon CHA University, Kyunggi, Korea. dsparkmd@cha.ac.kr
- 2Department of Urology, Seoul National University Bundang Hospital, Kyunggi, Korea.
- 3Department of Urology, Bundang Jesaeng Hospital, Kyunggi, Korea.
Abstract
- PURPOSE
We wanted to evaluate the therapeutic potential of a low dose of tamsulosin, as compared with doxazosin, for the treatment of premature ejaculation in men with lower urinary tract symptoms (LUTS).
MATERIALS AND METHODS
Ninety-six patients (mean age: 55 years) who had LUTS with premature ejaculation were randomly assigned to receive 0.2 mg of tamsulosin and 4 mg of doxazosin daily for a period of 3 months. Patients were evaluated by taking the medical history, the International Prostatic Symptom Score (IPSS) and the Male Sexual Health Questionnaire (MSHQ) for ejaculatory function. The intravaginal ejaculatory latency time (IELT) measured by the patient's estimation and the sexual satisfaction ratio of both the partner and patient were investigated twice during the screening period and after treatment. At 3 months later, we assessed the differences in the IPSS score, the MSHQ score, the IELT and the sexual satisfaction ratio between the two groups.
RESULTS
The two alpha 1-adrenoceptor antagonists had significant effects on the IPSS (p<0.05). However, we failed to find a statistically significant difference for each medication and the total MSHQ ejaculatory function score after medication in each group. The IELT was prolonged from 2.7+/-1.6 to 3.5+/-1.5 minutes and from 2.9+/-1.8 to 3.5+/-1.9 minutes in the tamsulosin and doxazosin groups, respectively. However, there was also no statistically significant difference of the IELT and the sexual satisfaction ratio in either group.
CONCLUSIONS
For patients with premature ejaculation and LUTS, 0.2mg of tamsulosin improved the voiding symptoms, as assessed with the IPSS, as 4mg of doxazosin did, but neither medication seemed to be effective for the treatment of premature ejaculation.