A substance administered to reduce the perception of pain or to induce numbness for surgery and may render the recipient unconscious.
Insensate: unable to feel, or unconscious.
Causing anesthesia; reducing pain sensitivity.
Any type of numbing or soothing drug.
Any substance or drug that reduces pain, induces sleep and may alter mood or behaviour; in some contexts, especially in reference to the opiates-and-opioids class, especially in reference to illegal drugs, and often both.
Of, or relating to narcotics.
Inducing sleep; causing narcosis.