a substance that removes the feeling of pain, consciousness etc

sleep-inducing or numbing drug

a substance, e.g. ointment, which takes away pain

pain remover

(a kind of) drug used to calm a person's nerves and to cause sleep

soothing agent, medicine

of hypnosis

spellbinding, sleep-inducing

(a medicine, drug) used to calm the nerves and reduce stress

soothing

of the spine

sleep-inducer

a drug that produced a calm mental state

soothing agent, medicine