Drug interactions
Cyproheptadine + Sufentanil
Severity: Major
Cyproheptadine and Sufentanil: major interaction.
Last updated Sources: US FDA label
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
Sufentanil is a very potent opioid, and sedating antihistamines can intensify its sedative and respiratory depressant effects. This is mainly relevant in anesthesia or monitored settings.
What this interaction means in plain words
Cyproheptadine and Sufentanil can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Cyproheptadine belongs to Respiratory; Sufentanil belongs to Musculoskeletal.
Why it happens
Additive CNS and respiratory depression.
What to do
Titrate sufentanil carefully and monitor respiratory rate, oxygen saturation and sedation. Reduce doses when used together.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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References
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 Sufentanil
- Alprazolam + Sufentanil Major
- Amitriptyline + Sufentanil Major
- Amobarbital + Sufentanil Major
- Aripiprazole + Sufentanil Major
- Asenapine + Sufentanil Major
- Baclofen + Sufentanil Major
Frequently asked questions
Can I take Cyproheptadine with Sufentanil?
MediHelp rates the interaction as major. Cyproheptadine and Sufentanil can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Sufentanil is a very potent opioid, and sedating antihistamines can intensify its sedative and respiratory depressant effects. This is mainly relevant in anesthesia or monitored settings.
How serious is the interaction between Cyproheptadine and Sufentanil?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Titrate sufentanil carefully and monitor respiratory rate, oxygen saturation and sedation. Reduce doses when used together.
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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