Clin-AlertClin-Alert (CLA) provides pharmacists, physicians, and other health care professionals with comprehensive summaries of adverse drug reactions, drug interactions, and market withdrawals from over 100 key medical and research journals from around the world. Clin-Alert's primary focus is drug-drug interactions, but it also features food-drug interactions, medication errors and dietary supplements. It also features First Report notice of the first documented report of an adverse clinical event.