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Drug interactions

Chlorzoxazone + Letibotulinumtoxina

Severity: Moderate

Chlorzoxazone and Letibotulinumtoxina: 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

Drugs that affect neuromuscular transmission or cause muscle relaxation may add to the weakness produced by botulinum toxin. Excess weakness, or in rare cases spread of the toxin effect, could result.

What this interaction means in plain words

Chlorzoxazone and Letibotulinumtoxina 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.

Evidence level: Low

Why it happens

Chlorzoxazone is a centrally acting muscle relaxant; its effect may add to the peripheral neuromuscular blockade of botulinum toxin, though this is largely theoretical.

What to do

Monitor for excessive muscle weakness, swallowing or breathing difficulty after injection. Consider reducing or holding the muscle relaxant around the time of treatment.

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 Chlorzoxazone with Letibotulinumtoxina?

MediHelp rates the interaction as moderate. Chlorzoxazone and Letibotulinumtoxina 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. Drugs that affect neuromuscular transmission or cause muscle relaxation may add to the weakness produced by botulinum toxin. Excess weakness, or in rare cases spread of the toxin effect, could result.

How serious is the interaction between Chlorzoxazone and Letibotulinumtoxina?

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 excessive muscle weakness, swallowing or breathing difficulty after injection. Consider reducing or holding the muscle relaxant around the time of treatment.

What other medicines interact with Chlorzoxazone?

MediHelp also lists interactions of Chlorzoxazone with, for example, Alfentanil, Alprazolam, Amobarbital. The full list is on the Chlorzoxazone page.

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