relaxant

Noun
  1. is a type of: drug - a substance that is used as a medicine or narcotic
    subtypes: muscle relaxant - a drug that reduces muscle contractility by blocking the transmission of nerve impulses or by decreasing the excitability of the motor end plate or by other actions
Adjective
  1. similar to: depressant - capable of depressing physiological or psychological activity or response by a chemical agent

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