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Methylephedrine is a sympathomimetic amine that appears in various over-the-counter cough and cold medications throughout the world , , . The abuse of methylephedrine-containing medications has been reported in Japan. Methylephedrine is not legally available in the United States, but has been identified in cases of drug abuse .
Methylephedrine is a sympathomimetic amine that appears in various over-the-counter cough and cold medications throughout the world , , . The abuse of methylephedrine-containing medications has been reported in Japan. Methylephedrine is not legally available in the United States, but has been identified in cases of drug abuse .
The pharmacology of methylephedrine is similar to that of other members of the ephedra alkaloid class of drugs. These compounds are sympathomimetic amines because they mimic the effects of the catecholamines on the sympathetic nervous system. These alkaloids permeate the blood-brain barrier and have a direct central nervous system stimulant effect with peripheral effects; the peripheral effects are indirect and primarily mediated by norepinephrine release . Methylephedrine expands the bronchia by relaxing the bronchial muscles . The decrease in urination with sympathomimetic use is increased through activation of the alpha-adrenoceptors of the smooth muscles of the bladder .
Used as an antitussive and decongestant .
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