Codeine 15 mg is a low-dose opioid medication that helps manage mild to moderate pain and can also be used to suppress cough in certain situations. It works by altering how the brain responds to pain and soothing the cough reflex. This dosage is typically prescribed when other, less potent pain relievers aren't doing the trick, or as part of a combination treatment plan. While it can be effective, Codeine 15 mg may lead to side effects like drowsiness, nausea, and constipation, and there's a risk of dependence if it's misused.