(CNN) When used in early pregnancy, many classes of common antibiotics are associated with an increased risk of miscarriage, according to a study published Monday in the Canadian Medical Association Journal. However, a greater chance of pregnancy loss was not seen with the most frequently used antibiotics, including penicillin. Bérard's research team compared pregnancy outcomes when different types of antibiotics were prescribed in early pregnancy. Generally, when a woman does not take antibiotics during pregnancy, her risk of a miscarriage is approximately 6% to 7%. In the study, women who took certain antibiotics in early pregnancy had an increased risk of 9% to 10%.

Source: CNN May 01, 2017 10:30 UTC