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Drug interactions

Ganaxolone + Metaxalone

Severity: Moderate

Ganaxolone and Metaxalone: moderate 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

Ganaxolone is a neuroactive steroid GABA-A modulator that frequently causes somnolence. Combined with metaxalone, sedation and impaired alertness may be increased.

What this interaction means in plain words

Ganaxolone and Metaxalone can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.

Ganaxolone belongs to Central Nervous System; Metaxalone belongs to Musculoskeletal.

Evidence level: Low

Why it happens

Additive CNS depression through GABA-A modulation and the sedating effect of metaxalone.

What to do

Monitor for oversedation and consider reducing doses if somnolence is excessive. Advise patients to avoid driving and alcohol.

What to ask your pharmacist

  • Should I take them at different times of day?
  • Does the dose of either medicine need to change?
  • Is there anything I should avoid, such as alcohol or certain foods, while on both?

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 Ganaxolone with Metaxalone?

MediHelp rates the interaction as moderate. Ganaxolone and Metaxalone can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Ganaxolone is a neuroactive steroid GABA-A modulator that frequently causes somnolence. Combined with metaxalone, sedation and impaired alertness may be increased.

How serious is the interaction between Ganaxolone and Metaxalone?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for oversedation and consider reducing doses if somnolence is excessive. Advise patients to avoid driving and alcohol.

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

Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.

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