怀孕晚期服用退热净(对乙酰氨基酚acetaminophen,一种替代阿司匹林的解热镇痛药)的妇女娩出胎儿患哮喘的可能性是未使用该药妇女的2倍。然而,伦敦King学院的Dr.Seif Shaheen及其同事提出,幼儿期所患哮喘中,仅有1％可归咎于孕晚期服用了退热净。 Women in the second trimester of pregnancy who took an antipyretic (paracetamol, an antipyretic analgesic instead of aspirin) were twice as likely to have asthma in their fetus than those who did not. However, Dr. Seif Shaheen and colleagues at King’s College London suggest that only 1% of early childhood asthma may be attributed to the net benefit of taking antipyretics during the third trimester.