Ephedrine 50mg: Uses, benefits, dosage and safety

Sympathomimetic ephedrine sulphate in ephedrine 50mg affects the adrenergic system. Ephedrine is mainly used by healthcare professionals to treat clinically significant hypotension during anaesthesia. Hence it is generally administered in a controlled medical setting, rather than being used as a common medicine.

What Is Ephedrine 50mg?

Ephedrine sulphate 50mg = Ephedrine 50mg (strength) Depending on the product, different concentrations and presentations of 50 mg strength can be found. An example of an approved injection is one containing 50 mg/mL ephedrine sulphate (38 mg/mL ephedrine base).

Ephedrine is a direct acting adrenergic agent on alpha and beta receptors. It also promotes the release of norepinephrine from sympathetic nerve endings. This may cause an increase in vascular tone, heart rate, cardiac output and blood pressure.

What is Ephedrine 50mg for?

Treatment of Anesthesia-Related Low Blood Pressure

Ephedrine sulphate injection is indicated principally for the treatment of clinically significant hypotension occurring in the setting of anaesthesia. Sometimes anaesthesia causes a large drop in blood pressure. In this case, trained health care professionals may administer ephedrine to help raise a person’s blood pressure.

In addition, healthcare professionals track the patient’s blood pressure and response during treatment. This method allows them to adapt the treatment to the clinical situation of the patient.

How ephedrine works?

Ephedrine stimulates alpha- and beta-adrenergic receptors and augments norepinephrine activity. This can lead to increased vascular resistance and cardiac activity which generally leads to an increase in blood pressure. It also produces bronchodilation via beta-adrenergic activity.

## Ephedrine 50mg Dosage Information

The dose should be titrated to the clinical response. The appropriate dose will depend on the formulation, patient’s condition and clinical situation. The labelled initial intravenous bolus dose for hypotension due to anaesthesia for an approved 50 mg/mL ephedrine sulphate injection is 5 mg to 10 mg, with additional doses used as clinically indicated, with a labelled total maximum of 50 mg. The 50 mg/mL formulation should not be given IV without dilution.

However, patients should not self-inject or calculate the dose of an injection. Ephedrine injection should be administered by trained health care professionals as it may have serious effects on blood pressure and heart rate.

Possible Side Effects of Ephedrine 50 mg

Like other medicines, ephedrine may cause unwanted effects. The following adverse reactions have been reported:

• Nausea.
• Throwing up
• Faster pulse rate
• Palpitations
• Dizzy
• Impatience
• Elevated blood pressure
• Abnormal heart rhythms in some cases

The most common adverse reactions (≥10%) reported in the prescribing information include nausea, vomiting and tachycardia.

Hence, medical monitoring is important, particularly when ephedrine is administered intravenously.

Drug Interactions and Cautions

Ephedrine can interact with some medicines. For example, its response may be affected by or increase certain risks with monoamine oxidase inhibitors (MAOIs), oxytocic drugs, clonidine, atropine, propofol, beta-blockers, alpha-blockers, theophylline, and cardiac glycosides.

But repeated doses can cause tachyphylaxis, when the medicine loses its effectiveness with repeated doses. In some cases, ephedrine can also cause significant increases in blood pressure.

Who Can Take Ephedrine 50mg?

Ephedrine injection should only be used as prescribed by a health care professional. Patients should tell their healthcare provider about all prescription medicines, over-the-counter medicines and supplements they use, before starting treatment.

Pregnant and nursing patients should also discuss ephedrine use with their health care professional, as treatment decisions depend on the clinical situation.

Conclusion of Ephedrine 50mg

Ephedrine 50mg is a potent sympathomimetic agent with a major role in the management of anaesthesia associated hypotension. It works by stimulating adrenergic receptors and boosting norepinephrine activity, to help increase blood pressure when clinically needed.

Ephedrine may affect the cardiovascular system and interact with other medicines. Hence it should be used only under appropriate medical supervision. Use as self-treatment of ephedrine is not recommended. Always follow the product specific prescribing information and your healthcare professional’s instructions.