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Drug interactions

Fentanyl intranasal + Hydrocodone

Severity: Major

Fentanyl intranasal and Hydrocodone: 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

Two opioid agonists together add to sedation and respiratory depression, with a risk of coma and death. Fentanyl is highly potent, which magnifies the risk.

What this interaction means in plain words

Fentanyl intranasal and Hydrocodone 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: High

Why it happens

Additive mu-opioid receptor agonism.

What to do

Use only when alternatives are inadequate, with minimum doses and duration. Monitor respiratory rate and sedation and keep naloxone available.

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 Fentanyl intranasal with Hydrocodone?

MediHelp rates the interaction as major. Fentanyl intranasal and Hydrocodone 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. Two opioid agonists together add to sedation and respiratory depression, with a risk of coma and death. Fentanyl is highly potent, which magnifies the risk.

How serious is the interaction between Fentanyl intranasal and Hydrocodone?

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 when alternatives are inadequate, with minimum doses and duration. Monitor respiratory rate and sedation and keep naloxone available.

What other medicines interact with Hydrocodone?

MediHelp also lists interactions of Hydrocodone with, for example, Alvimopan, Bupropion-naltrexone, Isocarboxazid. The full list is on the Hydrocodone page.

Full monographs, dosing and an interaction checker in the MediHelp app

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