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Drug interactions

Metoclopramide + Pheniramine

Severity: Minor

Metoclopramide and Pheniramine: 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

Pheniramine is a sedating antihistamine with anticholinergic activity. With metoclopramide, additive drowsiness is likely and anticholinergic effects may blunt metoclopramide's prokinetic action.

What this interaction means in plain words

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

Metoclopramide belongs to Gastrointestinal Tract; Pheniramine belongs to Respiratory.

Evidence level: Low

Why it happens

Additive CNS depression and anticholinergic antagonism of cholinergic prokinetic effect.

What to do

Counsel on sedation and avoid driving until response is known.

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 Metoclopramide with Pheniramine?

MediHelp rates the interaction as minor. Metoclopramide and Pheniramine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Pheniramine is a sedating antihistamine with anticholinergic activity. With metoclopramide, additive drowsiness is likely and anticholinergic effects may blunt metoclopramide's prokinetic action.

How serious is the interaction between Metoclopramide and Pheniramine?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Counsel on sedation and avoid driving until response is known.

What other medicines interact with Metoclopramide?

MediHelp also lists interactions of Metoclopramide with, for example, Amantadine, Amoxapine, Antipsychotics (e.g., haloperidol). The full list is on the Metoclopramide page.

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