The DOI matches its Crossref record; 4 of the 4 references it cites were found in a registry or an index.
Efficacy of Sildenafil Citrate (Viagra) in Men with Premature Ejaculation
Abstract
Objectives: Premature ejaculation (PE) is the most common ejaculatory dysfunction. We assessed the efficacy of sildenafil to increase the time to ejaculation, improve ejaculatory control, and decrease the postejaculatory erectile refractory time in men with PE. Design and Methods: The main study was an 8-week, double-blind, placebo-controlled, parallel group study in men between 18 and 65 years of age with diagnosed PE. A substudy was also conducted using a subset of patients (two-way crossover, one center) before entry to the main study. The primary study measured intravaginal ejaculatory latency (IELT) and responses to the Index of Premature Ejaculation (IPE) questionnaire. The substudy measured vibrotactile stimulation ejaculatory latency time (VTS-ELT) and postejaculatory erectile refractory time. Differences between treatment groups were determined by ancova at the 5% level of significance. Results: The change in IELT (1.6 ± 6.08 vs. 0.6 ± 2.07 minutes) and VTS-ELT (2.9 ± 0.4 vs. 2.4 ± 0.4 minutes) were higher after taking sildenafil, compared with placebo, but did not reach statistical significance. However, patients who took sildenafil (vs. placebo) reported significantly (P < 0.05) increased ejaculatory control (1.8 ± 0.3 vs. 1.5 ± 0.3), increased ejaculatory confidence (2.2 ± 0.2 vs. 1.9 ± 0.2), and improved overall sexual satisfaction scores (3.1 ± 0.2 vs. 2.8 ± 02) on the IPE, and had a decreased postejaculatory erectile refractory time (3.2 ± 0.7 vs. 6.4 ± 0.7 minutes). The most common adverse events for sildenafil (vs. placebo) were headache (15% vs. 1%), flushing (15% vs. 0%), dyspepsia (5% vs. 1%), abnormal vision (5% vs. 0%), and rhinitis (5% vs. 0%). Conclusions: Although IELT and VTS-ELT were not significantly improved, sildenafil increased confidence, the perception of ejaculatory control, and overall sexual satisfaction, and decreased the refractory time to achieve a second erection after ejaculation in men with PE.
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Citations
Cites
Sexual Dysfunction in the United States: Prevalence and Predictors
Laumann, E. O., Paik, A., & Rosen, R. C. (1999) · JAMA · doi:10.1001/jama.281.6.537 · Cited by 5,119
(1999) · doi:10.1016/s0090-4295(99)00099-0 · Cited by 1,051
Intimacy and quality of life among sexually dysfunctional men and women
McCabe, M. P. (1997) · Journal of Sex & Marital Therapy · doi:10.1080/00926239708403932 · Cited by 167
The roles of nitric oxide in sexual function of male rats
Hull, E. M., Lumley, L. A., Matuszewich, L., Dominguez, J., Moses, J., & Lorrain, D. S. (1994) · Neuropharmacology · doi:10.1016/0028-3908(94)90054-x · Cited by 119
Cited by
Guidelines on male sexual dysfunction: erectile dysfunction and premature ejaculation
Hatzimouratidis, K., Amar, E., Eardley, I., Giuliano, F., Hatzichristou, D., Montorsi, F., Vardi, Y., & Wespes, E. (2010) · European Urology · doi:10.1016/j.eururo.2010.02.020 · Cited by 1,223
Disorders of Orgasm and Ejaculation in Men
Rowland, D., McMahon, C. G., Abdo, C., Chen, J., Jannini, E., Waldinger, M. D., & Ahn, T. Y. (2010) · The Journal of Sexual Medicine · doi:10.1111/j.1743-6109.2010.01782.x · Cited by 508
Self-citationMcMahon, C. G., Althof, S. E., Waldinger, M. D., Porst, H., Dean, J., Sharlip, I. D., Adaikan, P. G., Becher, E., Broderick, G. A., Buvat, J., et al. (2008) · The Journal of Sexual Medicine · doi:10.1111/j.1743-6109.2008.00901.x · Cited by 485
Self-citationAlthof, S. E., McMahon, C. G., Waldinger, M. D., Serefoglu, E. C., Shindel, A. W., Adaikan, P. G., Becher, E., Dean, J., Giuliano, F., Hellstrom, W. J. G., et al. (2014) · Sexual Medicine · doi:10.1002/sm2.28 · Cited by 444
Self-citationAlthof, S. E., Abdo, C. H. N., Dean, J., Hackett, G., McCabe, M., McMahon, C. G., Rosen, R. C., Sadovsky, R., Waldinger, M., Becher, E., et al. (2010) · The Journal of Sexual Medicine · doi:10.1111/j.1743-6109.2010.01975.x · Cited by 403
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Metadata
- Authors
- McMahon, C. G., Stuckey, B. G. A., Andersen, M., Purvis, K., Koppiker, N., Haughie, S., & Boolell, M.
- Venue
- The Journal of Sexual Medicine
- Publisher
- Oxford University Press (OUP)
- Published
- 2005-05-01
- Volume
- 2
- Issue
- 3
- Pages
- 368-375
- ISSN
- 1743-6095 (ISSN-L)
- 1743-6109
- OpenAlex
- W2105570099
- Cited by
- 163
- References
- 4
- FWCI
- 8.25
- Type
- journal article
- Language
- en
- Open access
- closed
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- McMahon, C. G., Stuckey, B. G. A., Andersen, M., Purvis, K., Koppiker, N., Haughie, S., & Boolell, M. (2005). Efficacy of Sildenafil Citrate (Viagra) in Men with Premature Ejaculation. The Journal of Sexual Medicine. https://doi.org/10.1111/j.1743-6109.2005.20351.x
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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