The drug is still widely used as a first-line treatment for anovulation and unexplained infertility, even though a 2008 study raised serious questions about whether it does much about the latter.

• 而这种药物仍然作为治疗不排卵或原因不明的不育症的一线药物，尽管，一份2008年研究报告曾经对这种药物对原因不明的不育症是否真的有效果，提出质疑。