A drug overdose occurs when a person takes an excessive amount of a substance, leading to harmful effects on the body. This can happen with prescription medications, over-the-counter drugs, or illegal substances. Symptoms may include confusion, difficulty breathing, loss of consciousness, or seizures, depending on the drug involved. Overdoses can be accidental or intentional and may require immediate medical attention. Treatment often involves supportive care, such as monitoring vital signs and administering medications like naloxone for opioid overdoses. Prevention strategies include education about the risks of drug use and proper medication management.