Is it safe for the mother to take medications while breastfeeding?
Always talk with your doctor before your spouse starts taking any medications. According to the U.S. Department of Health & Human Services, most medications pass into her milk in small amounts. If she takes medication for a chronic condition such as high blood pressure, diabetes or asthma, her medication may already have been studied in breastfeeding women, so she should be able to find information to help her make an informed decision with the help of the doctor.
Newer medications and medications for rare disorders may have less information available.