西地那非
西地那非（英语：Sildenafil），又译昔多芬，是一种研发治疗心血管疾病药物辰光意外发明出个治疗男性勃起功能障碍药物。
目前辉瑞制药对西地那非个专利权已过期，其他厂商可以合法制造同种药物。
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