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勃起功能障碍(ED),被NIH-性无能委员会定义为“不能持续地达到和(或)保持足够的勃起以达到满意的性生活”,患者超过1亿。全球ED发病率估计为10％,且随年龄增长显著增加。为评估西地那非的有效性和耐受性,Palha AP等进行了一项开放、多中心研究。62名ED患者接受了治疗,结果显示,西地那非能有效改善ED,增加患者尝试性生活的次数和性生活成功的几率。51 (92．2％)名使用西地那非的患者,认为整体勃起功能得到改善。50mg和100mg西地那非,均有很好的耐受性和疗效。由于研究
Erectile dysfunction (ED), defined by the NIH-incompetence council as “unable to sustainably reach (or maintain) enough erections to achieve a satisfactory sexual life,” with more than 100 million patients. The global incidence of ED is estimated at 10%, and increases significantly with age. To assess the efficacy and tolerability of sildenafil, an open, multicenter study was conducted by the Palha AP et al. 62 ED patients were treated, the results show that sildenafil can effectively improve the ED, increasing the number of patients trying to live and the chances of sexual success. 51 (92.2%) patients with sildenafil thought that their overall erectile function was improved. 50mg and 100mg sildenafil, have good tolerance and efficacy. Due to research