October 24, 2011, — A new study demonstrates that angiotensin-converting enzyme (ACE) inhibitors taken in the first trimester of pregnancy pose no greater risk of birth defects than any other type of high blood pressure medication. The study, conducted by the U.S. Department of Health and Human Services’ (HHS) Agency for Healthcare Research and Quality (AHRQ), suggests high blood pressure itself may increase the risk of birth defects.
