FDA takes great efforts, within its legal authority, to address and prevent drug shortages, which can occur for many reasons, including manufacturing and quality problems, delays, and discontinuations. The agency works closely with manufacturers of drugs in short supply to communicate the issue and to help restore availability. FDA also works with other firms who manufacturer the same drug, asking them to increase production, if possible, in order to prevent or reduce the impact of a shortage.The majority of drug shortage information is provided to FDA by manufacturers. Communication between FDA and the public is an essential component of preventing and mitigating drug shortages. To ensure information is current, FDA appreciates all information and updates about shortages provided by manufacturers. Shortage notifications and updates may be reported to FDA at firstname.lastname@example.org.