Drug interactions
Chlorpromazine + Rimabotulinumtoxinb
Severity: Minor
Chlorpromazine and Rimabotulinumtoxinb: 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
Drugs with anticholinergic properties may add to the effects of botulinum toxin and increase systemic anticholinergic effects. This could potentially worsen neuromuscular weakness or dry mouth, although the evidence is limited.
What this interaction means in plain words
Chlorpromazine and Rimabotulinumtoxinb have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Chlorpromazine belongs to Central Nervous System; Rimabotulinumtoxinb belongs to Musculoskeletal.
Why it happens
Theoretical additive anticholinergic effects; established mechanism is lacking for chlorpromazine specifically.
What to do
Monitor for excessive weakness, swallowing difficulty or anticholinergic symptoms after injection. Adjust the toxin dose if needed.
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?
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Other interactions of Chlorpromazine
- Chlorpromazine + Dofetilide Contraindicated
- Chlorpromazine + Dronedarone Contraindicated
- Chlorpromazine + Droperidol Contraindicated
- Chlorpromazine + Ibutilide Contraindicated
- Chlorpromazine + Metrizamide Contraindicated
- Chlorpromazine + Panobinostat Contraindicated
Other interactions of Rimabotulinumtoxinb
- Amikacin + Rimabotulinumtoxinb Moderate
- Amitriptyline + Rimabotulinumtoxinb Moderate
- Atracurium + Rimabotulinumtoxinb Moderate
- Atropine + Rimabotulinumtoxinb Moderate
- Baclofen + Rimabotulinumtoxinb Moderate
- Benztropine + Rimabotulinumtoxinb Moderate
Frequently asked questions
Can I take Chlorpromazine with Rimabotulinumtoxinb?
MediHelp rates the interaction as minor. Chlorpromazine and Rimabotulinumtoxinb have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Drugs with anticholinergic properties may add to the effects of botulinum toxin and increase systemic anticholinergic effects. This could potentially worsen neuromuscular weakness or dry mouth, although the evidence is limited.
How serious is the interaction between Chlorpromazine and Rimabotulinumtoxinb?
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 for excessive weakness, swallowing difficulty or anticholinergic symptoms after injection. Adjust the toxin dose if needed.
What other medicines interact with Chlorpromazine?
MediHelp also lists interactions of Chlorpromazine with, for example, Dofetilide, Dronedarone, Droperidol. The full list is on the Chlorpromazine page.
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