The role of Tadalafil in treatment of infertility
Abstract
It was the aim of this research to assess whether Tadalafil 5 mg once daily can improves the sperm count of unexplained infertile males with erectile deficiency induced by the emotional stress of attempting to father children. Two groups, each made up of 30 unexplained infertile males with psychogenic erectile deficiency related to attempts to father children received Tadalafil 5 mg once daily (Group 1) or a placebo (Group 2) for one month. Unexplained infertile men are intended as normospermic men who could not father children over a one year period and whose female partner is free of factors causing infertility. The endpoints were: differences between the groups in restoring erectile response, modifying sperm count, side effects and modifications of sperm analyses with respect to resolution or not of the erectile deficiency irrespective of the substance (Tadalafil or placebo) used. The means were compared using analysis of variance and the percentages using the chi square test. The patients who received Tadalafil had their sperm volume, concentration and motility increased, but not the percentage of typical forms. Patients who received a placebo had no significant improvement. Additional analyses indicated that sperm volume, concentration and motility (but not morphology) significantly increased only in the patients who restored erectile response to sexual stimulation, independently of Tadalafil or placebo administration. No significant side effects were present. It is…
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