Expired medicines at home (IMAGE) Michigan Medicine - University of Michigan Caption Less than half of parents believe that over-the-counter medicine is less effective past its expiration date, while one in five parents think it’s unsafe. Credit C.S. Mott Children’s Hospital National Poll on Children’s Health at University of Michigan Health. Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.