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Drug interactions

Metaxalone + Phenylephrine po

Severity: Minor

Metaxalone and Phenylephrine po: 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

Oral phenylephrine is a mild stimulant decongestant and has little meaningful effect on the sedation caused by metaxalone. No clinically important interaction is established.

What this interaction means in plain words

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

Evidence level: Low

Why it happens

No established mechanism; opposing sympathomimetic stimulation is theoretical and weak.

What to do

No specific action is needed. Counsel the patient that sedation from metaxalone may still occur.

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 Metaxalone with Phenylephrine po?

MediHelp rates the interaction as minor. Metaxalone and Phenylephrine po have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Oral phenylephrine is a mild stimulant decongestant and has little meaningful effect on the sedation caused by metaxalone. No clinically important interaction is established.

How serious is the interaction between Metaxalone and Phenylephrine po?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No specific action is needed. Counsel the patient that sedation from metaxalone may still occur.

What other medicines interact with Metaxalone?

MediHelp also lists interactions of Metaxalone with, for example, Alfentanil, Belladonna and opium, Benzhydrocodone / acetaminophen. The full list is on the Metaxalone page.

Full monographs, dosing and an interaction checker in the MediHelp app

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