Common Antibiotics Linked to Miscarriage in Early Pregnancy

A new study published in the Canadian Medical Association Journal reveals that taking certain types of antibiotics during early pregnancy may lead to an increased risk of miscarriage.

The study found that certain types of antibiotics such as macrolides, quinolones, tetracyclines, sulfonamides and metronidazole led to a “60% to two-fold” increase in the risk of miscarriage.

However, the study did not find a link between other commonly used antibiotics like Penicillin, Erythromycin, or Nitrofurantoin, which is often used to treat urinary tract infections in pregnant women.

While infections need to be treated with antibiotics, the study highlights the importance of having treatment options.

The researchers used data on women in the Quebec Pregnancy Cohort between 1998 and 2009. The researchers looked at data from almost 9,000 cases of miscarriage at an average time of 14 weeks into pregnancy, involving girls and women between 15 and 45 years of age and compared them to 87,000 pregnancies where miscarriage did not occur.

Women who miscarried were more likely to be older, living alone, and to have multiple health issues and infections, the study suggests.