The FDA is in charge of insuring the public that food and drugs on the market are safe for consumption. Approval of drugs for use comes about only after the manufacturer shows that any risk involved in the drug's use are far outweighed by the benefits. This is done through a process of rigorous testing that is presented to the FDA. After the drug is on the market, the FDA doesn't forget about it. The drug is monitored to identify any problems that might not have been recognized during the testing stages. It is also monitored to insure it is being manufactured properly. During this monitoring process, any adverse reactions are entered into a computerized database called the AERS (Adverse Event Reporting System) and through MedWatch, the FDA's safety information and adverse event reporting system. An FDA drug recall is action taken to remove the product from the market. These recalls occur when large numbers of adverse reactions have been reported. Recalls can also be due to problems with the package, a manufacturing problem or even contamination of the product. Recalls are classified as I, II, or III, with Class I being the most serious recall. The FDA is prudent in informing the public when a drug is recalled to prevent more injuries and illness than necessary.