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Drug interactions

Ephedrine + Prochlorperazine

Severity: Minor

Ephedrine and Prochlorperazine: minor interaction.

Last updated

For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.

Summary

Phenothiazines with alpha-blocking activity can blunt the pressor response to ephedrine or cause hypotension when it is used to treat it. Ephedrine may also counteract the sedative effect of prochlorperazine.

What this interaction means in plain words

Ephedrine and Prochlorperazine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.

Ephedrine belongs to Cardiovascular; Prochlorperazine belongs to Central Nervous System.

Evidence level: Low

Why it happens

Alpha-adrenergic blockade by prochlorperazine opposes sympathomimetic vasoconstriction.

What to do

Monitor blood pressure and heart rate; titrate ephedrine to effect and consider another vasopressor if the response is poor.

What to ask your pharmacist

  • Is there anything I should notice while taking both?
  • Do I need to tell my doctor at the next visit?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Ephedrine with Prochlorperazine?

MediHelp rates the interaction as minor. Ephedrine and Prochlorperazine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Phenothiazines with alpha-blocking activity can blunt the pressor response to ephedrine or cause hypotension when it is used to treat it. Ephedrine may also counteract the sedative effect of prochlorperazine.

How serious is the interaction between Ephedrine and Prochlorperazine?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood pressure and heart rate; titrate ephedrine to effect and consider another vasopressor if the response is poor.

What other medicines interact with Prochlorperazine?

MediHelp also lists interactions of Prochlorperazine with, for example, Dronedarone, Ibutilide, Nilotinib. The full list is on the Prochlorperazine page.

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