Preventing bronchial asthma attacks and relieving mild asthma attacks, not effective in acute severe asthma attacks. For subarachnoid anesthesia or epidural anesthesia-induced hypotension and chronic hypotension. Treatment of nasal congestion caused by congestion and swelling of nasal mucosa due to various reasons.

Due to the different dosage forms and specifications, please read the instructions carefully or follow the doctor's instructions for dosage. Prolonged use in large quantities may cause adverse reactions such as tremor, anxiety, insomnia, headache, palpitations, sensation of fever and sweating. When taken at night, sedative-hypnotics such as phenobarbital are often added to prevent insomnia.

Expanded information:

Ephedrine is used in combination with barbiturates, phenylephrine, and aminophylline, through the the latter's central inhibitory, antiallergic, anticholinergic, relieving bronchospasm and reducing glandular secretion effects. Avoid combining with monoamine oxidase inhibitors such as eugenol to avoid high blood pressure. Combined with adrenocorticotropic hormone, this product can increase their metabolic clearance, must adjust the dose of corticosteroids.

Urinary alkalinizing agents, such as acid-producing drugs, calcium or magnesium carbonates, citrate, sodium bicarbonate, etc., affecting the excretion of the product in the urine, increasing the half-life of the product, prolonging the duration of the effect, especially if the urine remains alkaline for a few days or longer, the patient is mostly caused by ephedrine intoxication, the dosage of the product should be adjusted.

Combined with alpha-blocking drugs such as phentolamine, prazosin, and tolazoline, as well as phenothiazines, it can counteract the pressor effect of this product. When used in combination with general anesthetics such as chloroform, halothane and isoflurane, it can make the myocardium more sensitive to sympathomimetic amines, and there is a risk of ventricular arrhythmia, so when it is necessary to use the same drug, the dosage of this product should be reduced. When used with tricyclic antidepressants such as Maprotiline, it reduces the pressor effect of this product.

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