A sedative drug is a type of medication that is used to reduce anxiety and promote relaxation. There are several synonyms for the term sedative drug, which include tranquilizer, hypnotic, anxiolytic, relaxant, and calmative. A tranquilizer is a drug that calms the body and reduces or eliminates anxiety without inducing sleep. Hypnotics, on the other hand, are sedative drugs that induce sleep and are used to treat insomnia. Anxiolytics are drugs that reduce anxiety and promote relaxation. Relaxants may refer to muscle relaxants or sedative drugs that promote general relaxation. Lastly, calmatives may refer to any medication that has a calming effect on the body and mind.