Part of the mission of the FDA's Center for Drug Evaluation and Research (CDER) is to ensure that companies that sell prescription drugs also provide information that is truthful, balanced, and accurately described. CDER's Office of Prescription Drug Promotion (OPDP) oversees prescription drug ad activities. OPDP does this work by: (1) looking for and taking action against advertisements that violate the law; (2) educating industry and others about the specifics of the law; and (3) encouraging better communication of promotional information provided both to healthcare professionals and to consumers.