Ephedrine Hydrochloride: Functions and Effects

As a commonly used medication, ephedrine hydrochloride has the following main effects and functions: 1. Relief of nasal congestion: Ephedrine hydrochloride can constrict capillaries, reduce tissue edema and bleeding, thereby effectively alleviating nasal congestion caused by colds. 2. Bronchodilation: By stimulating adrenergic receptors, ephedrine hydrochloride can dilate bronchi and improve respiratory efficiency. It has significant therapeutic effects on respiratory diseases such as asthma. 3. Central nervous system stimulation: Ephedrine hydrochloride increases dopamine levels in the cerebral cortex and enhances the activity of norepinephrine, exerting central nervous system stimulant effects. However, it may also cause adverse reactions such as insomnia and anxiety. 4. Reduction of pulmonary ventilation resistance: It selectively stimulates β-receptors, causing relaxation of bronchial smooth muscle and reducing pulmonary ventilation resistance. It is suitable for treating respiratory distress caused by acute bronchospasm. Ephedrine hydrochloride should be used under the guidance of a physician to avoid misuse and prevent adverse consequences.