Codeine is a medication that belongs to the opioid class of drugs. It is primarily used to relieve mild to moderate pain and, in some cases, to suppress coughing. Codeine works by binding to specific receptors in the brain and spinal cord, reducing the perception of pain and increasing pain tolerance.
In addition to its analgesic properties, codeine can also have side effects, including drowsiness, constipation, and nausea. It can also be habit-forming and lead to physical and psychological dependence, making it essential to use it only as prescribed by a healthcare professional and to follow their recommendations closely.