tranquilizer

(tran″kwĭ-līz′ĕr )

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(trang″kwĭ-līz′ĕr)
[L. tranquillus, calm]
A drug that reduces tension, agitation, hyperactivity, and anxiety.
Some tranquilizers may injure the developing embryo. Therefore, before prescribing one, one should know whether it is approved for use during pregnancy, esp. early pregnancy.

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