Narcotic vs Narcotics - What's the difference?

As nouns the difference between narcotic and narcotics

is that narcotic is any class of substances or drugs, that reduces pain, induces sleep and may alter mood or behaviour while narcotics is .

is of, or relating to narcotics.

(wikipedia narcotic)

* narcotick (obsolete)

(en noun)

Any class of substances or drugs, that reduces pain, induces sleep and may alter mood or behaviour.

Any type of numbing drug.

Certain illegal drugs.

(en adjective)

Of, or relating to narcotics.

Inducing sleep; causing narcosis.

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