Certain Antibiotics Linked to Miscarriage
Some antibiotics may increase the risk for miscarriage when taken early in pregnancy, according to a new study. The research, which was conducted in Canada, showed a slight increase in pregnancy loss before the 20th week in expectant mothers given certain antibiotics compared to pregnant women who do not take antibiotics.
Antibiotics—which are used to treat infections—are frequently prescribed during pregnancy. Although most are generally considered safe, concerns remain and studies evaluating the potential risks have produced conflicting results.
For this study, researchers compared data collected from 1998 to 2009 involving more than 95,000 pregnant women. Of these, about 12,500 were given antibiotics early in pregnancy and about 8,700 experienced a miscarriage during the first 20 weeks. According to researchers, five classes of antibiotics—macrolides, quinolones, tetracyclines, sulfonamides, and metronidazole—were associated with a small increase in miscarriage risk.
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