Narrower Terms:

Narrower Terms:

Related Terms:

Related Terms:

Scope Note:

agent that produces insensibility, somnolence or induces sleep; especially, any derivative, natural or synthetic, of opium or morphine or any substance that has their effects; narcotics have potent analgesic effects associated with significant changes in mood and behavior, and with the potential for dependence and tolerance following repeated administration.

Term Number:

2484-5723