OPIATE

It will knock you out

• Addictive drug

• Addictive narcotic

• Calmative

• Calmer

• Causing apathy

• Causing dullness

• Chloral hydrate, e.g.

• Cocaine, for one

• Codeine, e.g.

• Controlled substance

• Deadening agent

• Dentist's number?

• Drug

• Drug category

• Drug derived from a poppy plant

• Drug that dulls the brain

• Drug that's a downer

• Duller of the senses

• Endorphin, basically

• Endorphin, e.g.

• Hashish

• Heroin, for one

• Inaction inducer

• It can knock you out

• It may induce relaxation

• It'll knock you out

• It'll put you under

• It's a real downer

• Kind of drug

• Laudanum e.g.

• Lethargy inducer

• Mind boggler

• Mind clouder

• Mind duller

• Mind-alterer

• Morphine or codeine

• Morphine or codeine, e.g.

• Morphine, e.g.

• Morphine, for one

• Narcotic

• Narcotic drug

• Narcotic or sedative

• Natural number?

• Pain reliever

• Pain-relieving drug

• Painkiller

• Poppy derivative

• Poppy plant derivative

• Poppy product

• Poppy-sap drug

• Potent drug

• Potent painkiller

• Powerful painkiller

• Prescription number

• Producer of inertia

• Relaxant

• Religion, in an oft-quoted metaphor

• Religion, to Marx

• Religion, to the masses, per Marx

• Rest inducer

• Sedative

• Sedative drug

• Sense duller

• Sense dulling drug

• Sleep inducer

• Sleep medication

• Sleep-inducing

• Sleep-inducing drug

• Sleep-inducing medication

• Sleeping pill

• Soporific

• Stimulant's opposite

• What Marx likened religion to

• What might be a knockout?

• A narcotic drug that contains opium or an opium derivative