Origin

China

Active principle contain 1-ephedrine D-pseudoephedrine,1-N-methylephedrine,D-N-methylpseudoephedrine,1-norephedrine,D-norpseudoephedrine,and containing ephedra oxazine(two,three,five,six-tetramethylpyrazine,or so.)Pharmacological action:Both as well as driect acting to adrenal tissue receptor,and also accelerating noradrenalin be able to nerve ending set noradrenalin,thereby exerting indirect action.under the treatment with them,throughincreasing cardiac output and periphery vasoconstriction acting incline elevation of blood pressure up.in same time heartbeat will be expedite.Which cause bronchiectasis,reducing intestine tension and movement,relaxation musculus detrusorvesicae,shrinkage sphincter,depress utrrine activity,relaxation pupil therefore unaffected light reaction.