Drug interactions
Perphenazine + Rimabotulinumtoxinb
Severity: Minor
Perphenazine 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, such as perphenazine, may add to the systemic anticholinergic effects of botulinum toxin. The clinical significance is uncertain, but excessive neuromuscular weakness or spread of toxin effect is theoretically possible.
What this interaction means in plain words
Perphenazine 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.
Perphenazine belongs to Central Nervous System; Rimabotulinumtoxinb belongs to Musculoskeletal.
Why it happens
Additive anticholinergic and neuromuscular effects are proposed; the mechanism is largely theoretical.
What to do
Monitor for generalized weakness, swallowing 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 Perphenazine
- Ibutilide + Perphenazine Contraindicated
- Perphenazine + Pimozide Contraindicated
- Perphenazine + Thioridazine Contraindicated
- Adagrasib + Perphenazine Major
- Alfentanil + Perphenazine Major
- Amiodarone + Perphenazine Major
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 Perphenazine with Rimabotulinumtoxinb?
MediHelp rates the interaction as minor. Perphenazine 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, such as perphenazine, may add to the systemic anticholinergic effects of botulinum toxin. The clinical significance is uncertain, but excessive neuromuscular weakness or spread of toxin effect is theoretically possible.
How serious is the interaction between Perphenazine 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 generalized weakness, swallowing or breathing difficulty after injection, and use the lowest effective toxin dose.
What other medicines interact with Perphenazine?
MediHelp also lists interactions of Perphenazine with, for example, Ibutilide, Pimozide, Thioridazine. The full list is on the Perphenazine page.
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