EzineArticles.com: Ephedrine HCL (not to be confused with ephedrine) is a sympathomimetic amine which works as an appetite suppressant, decongestant, stimulant, concentration aid, and last but not the least for treating hypotension associated with the problem of anesthesia. Ephedrine is quite similar in its structure to the derivatives of methamphetamine and amphetamine.

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Ephedrine Hydrocloride – An Introduction