1) Administer narcotics to 2) Dose 3) Drug 4) Narcotise 5) To anesthetize, to drug 6) To dull the senses of 7) To make into a narcotic 1) Dope 2) Narcotise 
• (v. t.) To imbue with, or subject to the influence of, a narcotic; to put into a state of narcosis. • (v. t.) To imbue with, or subject to the influence of, a narcotic; to put into a state of narcosis.
(nahr´ko-tīz) to put under the influence of a narcotic.
Nar'co·tize transitive verb [ imperfect & past participle Narcotized ; present participle & verbal noun Narcotizing .] To imbue with, or subject to the influence of, a narcotic; to put into a state of narcosis. 
[v] - administer narcotics to
narcotize, narcotized, narcotizing 1. To bring or render insensible with a narcotic. 2. To make dull or to deaden. 3. To diminish consciousness as in the administration of a general anesthesia or sedation.