Message: | Including the effect of the product: bronchiectasis, by acting on the beta 2 adrenergic receptor on the relaxation of bronchial smooth muscle, relieve bronchial spasm, by acting on the alpha adrenergic receptor to bronchial artery contraction, eliminate congestion and edema, improve ventilation, inhibit antigen induced histamine release histamine, directly cause bronchoconstriction, vascular dilatation and edema; the heart excited, effects on cardiac beta 1 adrenergic receptor, the heart rate increase myocardial contractility strengthening; third, increased blood pressure, small dose of epinephrine by exciting the heart cardiac output increased systolic blood pressure, causing moderate increase, at the same time effect on skeletal muscle vascular beds beta 2 adrenergic receptor, expand blood vessel, reduce peripheral vascular resistance and decreased diastolic blood pressure; larger doses acts on skeletal muscle vascular beds alpha adrenergic receptors cause vasoconstriction, increased peripheral vascular resistance, the systolic and diastolic blood pressure were increased; the local vascular contraction, effect on the skin, mucous membrane and viscera, with alpha adrenergic receptor, vasoconstriction. In addition, added to local anesthetics or topical anesthetics, can delay the absorption, and prolong the action time, and has the hemostatic effect. |