Obstet Gynecol. There are no intense feelings when I ejaculate. The repeat administration of both sildenafil and placebo was performed to correct for the inherent intrasubject variability in sperm motility and morphology measures.
The study also included assessments of safety and tolerability. All animals were divided into 4 groups; each group consisting of 8 mice. J Chromatogr B. Discussion In fact, synthetic anabolic-androgenic steroids such as oxymetholone act similar to androgen hormones.