Drug induced CNS depression

Drug-induced CNS depression means reduced function or activity of the central nervous system due to certain medications. Opioids, anti-anxiety drugs, sedatives, anesthetics, hypnotics, and recreational drugs like heroin inhibit the brain activity and result in decreased breathing, decreased heart rate, drowsiness, impaired thinking, loss of consciousness, etc. Drug overdose can cause severe CNS depression leading to delirium, coma, and death.