| 单词 |
methamphetamine |
| 释义 |
methamphetamine Pharm.|mɛθæmˈfɛtəmiːn, -ɪn|
[f. meth- + amphetamine.]
A methyl derivative, C6H5·CH2·CH(CH3)·NH(CH3), of amphetamine, used in the form of the hydrochloride, a white crystalline compound, as a stimulant of the central nervous system; its effects resemble those of amphetamine but are more rapid in onset and longer lasting.
1949Jrnl. Amer. Med. Assoc. 22 Jan. 228 New and non-official remedies. Methamphetamine hydrochloride...d-Desoxyephedrine hydrochloride. 1951A. Grollman Pharmacol. & Therapeutics xi. 212 Methamphetamine hydrochloride..may be considered as the methyl derivative of amphetamine. It is a potent analeptic and, like amphetamine, has been used in the treatment of narcolepsy, postencephalitic parkinsonism, alcoholism, and in certain depressive states..and in the treatment of obesity. 1960J. J. Lewis Introd. Pharmacol. viii. 287 Amphetamine, dexamphetamine and methamphetamine have qualitatively similar properties but vary in potency. Methamphetamine is more potent than dexamphetamine which is in turn more potent than its racemate amphetamine. 1970C. M. B. Pare in C. W. H. Harvard Current Med. Treatm. (ed. 3) xv. 479 Following injection of the methamphetamine the doctor directs the interview towards topics which he thinks may be particularly stressful. |
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单词 metasomatosis 释义 ‖ metasomatosis Geol.|mtsmtss|[mod.L., f. meta- + Gr. -, ῶ body ......