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Drug interactions

Amisulpride + Fentanyl iontophoretic transdermal system

Severity: Major

Amisulpride and Fentanyl iontophoretic transdermal system: 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

Both drugs depress the central nervous system. Together they can cause profound sedation, respiratory depression and low blood pressure.

What this interaction means in plain words

Amisulpride and Fentanyl iontophoretic transdermal system 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.

Evidence level: Moderate

Why it happens

Additive CNS depressant effects of opioid agonism and antipsychotic sedation.

What to do

Use only if other options are inadequate, with the lowest effective fentanyl dose. Monitor sedation and respiratory rate, particularly after starting or changing doses.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Amisulpride with Fentanyl iontophoretic transdermal system?

MediHelp rates the interaction as major. Amisulpride and Fentanyl iontophoretic transdermal system 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. Both drugs depress the central nervous system. Together they can cause profound sedation, respiratory depression and low blood pressure.

How serious is the interaction between Amisulpride and Fentanyl iontophoretic transdermal system?

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 only if other options are inadequate, with the lowest effective fentanyl dose. Monitor sedation and respiratory rate, particularly after starting or changing doses.

What other medicines interact with Amisulpride?

MediHelp also lists interactions of Amisulpride with, for example, Amiodarone, Arsenic trioxide, Disopyramide. The full list is on the Amisulpride page.

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