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芳芳一直坚持口服避孕药避孕,3年来从没失败过。可是,她最近发现已有两个多月没有来月经,就急忙到妇产医院去检查,医生明确告诉她已经怀孕了。这使她感到很蹊跷,既未漏服过药,也未服过期、变质的药,怎么会怀孕呢?医生经过详细询问,才知半年前芳芳患了肺结核,后来一直口服利福平、乙胺丁醇和异烟肼等进行治疗。这些抗结核药正是导致芳芳避孕失败的“罪魁祸首”。
Fang Fang has always insisted oral contraceptive contraception, three years never failed. However, she recently found that more than two months have not come to menstruation, hurried to the maternity hospital to check, the doctor told her explicitly that she was pregnant. This made her feel very strange, did not miss the drug, nor obsolete, metamorphic drugs, how pregnant? Doctor asked in detail, I discovered Fangfang had tuberculosis six months ago, and has been oral rifampicin, Ethambutol and isoniazid for treatment. These anti-TB drugs are exactly the culprit "that led to the failure of Fang Fang contraception.