Drug interactions
Cyproheptadine + Rimabotulinumtoxinb
Severity: Moderate
Cyproheptadine and Rimabotulinumtoxinb: 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
Anticholinergic agents may add to the effects of botulinum toxin, with potential for excess neuromuscular weakness and systemic anticholinergic effects. Rimabotulinumtoxin B has notable autonomic effects such as dry mouth, which may be exaggerated.
What this interaction means in plain words
Cyproheptadine and Rimabotulinumtoxinb 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.
Cyproheptadine belongs to Respiratory; Rimabotulinumtoxinb belongs to Musculoskeletal.
Why it happens
Additive antimuscarinic activity alongside toxin-mediated inhibition of acetylcholine release.
What to do
Monitor for generalized weakness, dysphagia, dry mouth and breathing difficulty after injection. Consider an alternative to the antihistamine if symptoms emerge.
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?
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Other interactions of Cyproheptadine
- Cyproheptadine + Isocarboxazid Contraindicated
- Cyproheptadine + Phenelzine Contraindicated
- Cyproheptadine + Tranylcypromine Contraindicated
- Alfentanil + Cyproheptadine Major
- Belladonna and opium + Cyproheptadine Major
- Benzhydrocodone / acetaminophen + Cyproheptadine 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 Cyproheptadine with Rimabotulinumtoxinb?
MediHelp rates the interaction as moderate. Cyproheptadine and Rimabotulinumtoxinb 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. Anticholinergic agents may add to the effects of botulinum toxin, with potential for excess neuromuscular weakness and systemic anticholinergic effects. Rimabotulinumtoxin B has notable autonomic effects such as dry mouth, which may be exaggerated.
How serious is the interaction between Cyproheptadine and Rimabotulinumtoxinb?
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 generalized weakness, dysphagia, dry mouth and breathing difficulty after injection. Consider an alternative to the antihistamine if symptoms emerge.
What other medicines interact with Cyproheptadine?
MediHelp also lists interactions of Cyproheptadine with, for example, Isocarboxazid, Phenelzine, Tranylcypromine. The full list is on the Cyproheptadine page.
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