Tylenol 3 is a prescription medication that contains a combination of acetaminophen and codeine. It is used to relieve mild to moderate pain that is not adequately managed by other types of painkillers. Acetaminophen is a non-opiate, non-salicylate analgesic and antipyretic, while codeine is an opioid pain reliever. The combination of these two medications works by changing the way the body senses pain and by cooling the body. Tylenol 3 is indicated for the management of mild to moderate pain, where treatment with an opioid is appropriate and for which alternative treatments are inadequate. It is important to note that Tylenol 3 contains codeine, which is a Schedule III controlled substance, and therefore has risks of addiction, abuse, and misuse. It is crucial to follow the prescribed dosage and consult a healthcare provider before taking this medication, as misuse can lead to serious health issues.