男用避孕药的研究大多从干扰精子发生和精子成熟等方面寻找新药,但至今尚无众多理想的药物问世。为此,我们应从多种途径寻找安全可靠的男用避孕药。Kedia 等曾报导,交感神经广泛切除或服用胍乙啶类药,病人虽有正常的性功能,但出现不育症,其原因是由于输精管、壶腹和精囊不收缩而无射精的缘故。因此他们提出用α-受体阻断剂影响输精管、壶腹和精囊的收缩,可引起暂时性无精子状态,并有可能作为 Most of the research on male contraceptives is looking for new drugs in terms of interfering with spermatogenesis and sperm maturation, but so far no ideal drugs are available. To this end, we should look for safe and reliable male contraceptives in many ways. Kedia et al. Reported that sympathetic nerve resection or taking guanethidine drugs, although patients with normal sexual function, but the emergence of infertility, the reason is due to the vas deferens, ampulla and seminal vesicle contraction without ejaculation reason. They therefore propose that the effect of a-receptor blockers on vas deferens, ampulla and seminal vesicles contractions can cause transient azoospermia and is likely to be