Drug interactions
Pimozide + Rimabotulinumtoxinb
Severity: Minor
Pimozide 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 activity may theoretically potentiate botulinum toxin effects, and pimozide has modest antimuscarinic activity. This might increase systemic weakness or anticholinergic effects, though it is poorly documented.
What this interaction means in plain words
Pimozide 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.
Pimozide belongs to Central Nervous System; Rimabotulinumtoxinb belongs to Musculoskeletal.
Why it happens
Theoretical additive anticholinergic/neuromuscular effects.
What to do
Monitor for excessive weakness, dysphagia or breathing difficulty after injection, and use the lowest effective toxin dose.
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 Pimozide
- Adagrasib + Pimozide Contraindicated
- Amiodarone + Pimozide Contraindicated
- Amisulpride + Pimozide Contraindicated
- Amitriptyline + Pimozide Contraindicated
- Amoxapine + Pimozide Contraindicated
- Anagrelide + Pimozide 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 Pimozide with Rimabotulinumtoxinb?
MediHelp rates the interaction as minor. Pimozide 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 activity may theoretically potentiate botulinum toxin effects, and pimozide has modest antimuscarinic activity. This might increase systemic weakness or anticholinergic effects, though it is poorly documented.
How serious is the interaction between Pimozide 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, dysphagia or breathing difficulty after injection, and use the lowest effective toxin dose.
What other medicines interact with Pimozide?
MediHelp also lists interactions of Pimozide with, for example, Adagrasib, Amiodarone, Amisulpride. The full list is on the Pimozide page.
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