Drug interactions
Perphenazine + Sufentanil
Severity: Major
Perphenazine and Sufentanil: major 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
Combining an opioid with a phenothiazine increases sedation, hypotension and respiratory depression. The risk is greatest with higher doses or in frail patients.
What this interaction means in plain words
Perphenazine 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.
Perphenazine belongs to Central Nervous System; Sufentanil belongs to Musculoskeletal.
Why it happens
Additive CNS and respiratory depression, with additive hypotension from alpha-adrenergic blockade.
What to do
Use the lowest effective doses, monitor respiratory rate, sedation and blood pressure, and have resuscitation capability available during sufentanil use.
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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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 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 Perphenazine with Sufentanil?
MediHelp rates the interaction as major. Perphenazine 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. Combining an opioid with a phenothiazine increases sedation, hypotension and respiratory depression. The risk is greatest with higher doses or in frail patients.
How serious is the interaction between Perphenazine 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: Use the lowest effective doses, monitor respiratory rate, sedation and blood pressure, and have resuscitation capability available during sufentanil use.
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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