In pharmacology, a drug that calms and relieves anxiety. The first tranquilizer, chlordiazepoxide hydrochloride (brand name: Librium) received FDA approval in 1960. Tranquillizers range in potency from mild to major, with increasing levels of drowsiness occurring as potency increases. They are prescribed for a wide variety of conditions, but are used primarily to treat anxiety and insomnia. Most tranquillizers are potentially addictive, particularly those in the benzodiazepine family. See benzodiazepine tranquilizer.
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A drug that promotes tranquility by calming, soothing, quieting, or pacifying with minimal sedating or depressant effects.
- major t. SYN: antipsychotic agent.
- minor t. SYN: antianxiety agent.

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tran·quil·iz·er or chiefly Brit tran·quil·liz·er or tran·quil·lis·er -.lī-zər n a drug used to reduce mental disturbance (as anxiety and tension) see antipsychotic

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tran·qui·liz·er (trang″kwĭ-līzґər) [L. tranquillus quiet, calm + -ize + -er agent] a drug with a calming, soothing effect; currently it is usually used to denote a minor t.

Medical dictionary. 2011.

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Look at other dictionaries:

  • Tranquilizer — Tran quil*i zer, Tranquillizer Tran quil*li zer , n. One who, or that which, tranquilizes. [1913 Webster] …   The Collaborative International Dictionary of English

  • tranquilizer — index narcotic Burton s Legal Thesaurus. William C. Burton. 2006 …   Law dictionary

  • tranquilizer — (n.) sedative, 1824 (first reference is to ground ivy), agent noun from TRANQUILIZE (Cf. tranquilize); in reference to one of a large group of anti anxiety drugs, it is recorded by 1956 …   Etymology dictionary

  • tranquilizer — or tranquillizer [trang′kwəlī΄zər, tran′kwəlīz΄ər] n. a person or thing that tranquilizes; esp., a depressant drug, as Valium or Librium, used as a calming agent in relieving and controlling various emotional disturbances, anxiety neuroses,… …   English World dictionary

  • Tranquilizer — Als Tranquillanzien bzw. Tranquilizer (lat. tranquillare = beruhigen) wird eine Gruppe von Psychopharmaka zusammengefasst, die angstlösend (anxiolytisch) und entspannend (sedierend) wirken. Als synonyme Begriffe gelten Anxiolytika (lat. anxius =… …   Deutsch Wikipedia

  • Tranquilizer — Sedativum (fachsprachlich); Beruhigungsmittel * * * Tran|qui|li|zer 〈[træ̣ηkwılaızə(r)] m. 3〉 beruhigendes Arzneimittel; Sy Ataraktikum [<engl. tranquilize „beruhigen“] * * * Tran|qui|li|zer [ træŋkwɪlaɪzə[r]; engl. tranquilize = beruhigen… …   Universal-Lexikon

  • Tranquilizer — [Nerven]beruhigungsmittel; (ugs.): Nervenmittel; (Jargon): Downer; (Med., Pharm., Psychol.): Mitigans, Neuroleptikum, Sedativum, Temperantium, Tranquillans. * * * Tranquilizer,der:⇨Beruhigungsmittel Tranquilizer→Beruhigungsmittel …   Das Wörterbuch der Synonyme

  • tranquilizer — noun a drug used to reduce stress or tension without reducing mental clarity (Freq. 3) • Syn: ↑tranquillizer, ↑tranquilliser, ↑antianxiety agent, ↑ataractic drug, ↑ataractic agent, ↑ataractic • Derivationall …   Useful english dictionary

  • tranquilizer — /trang kweuh luy zeuhr/, n. 1. a person or thing that tranquilizes. 2. a drug that has a sedative or calming effect without inducing sleep. 3. See antianxiety drug. 4. antipsychotic (def. 2). Also, tranquillizer. [1790 1800; TRANQUILIZE + ER1] *… …   Universalium

  • tranquilizer — also tranquillizer noun Date: 1800 1. one that tranquilizes 2. a drug used to reduce mental disturbance (as anxiety and tension) compare antipsychotic …   New Collegiate Dictionary

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