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Drug interactions

Hydromorphone + Secobarbital

Severity: Major

Hydromorphone and Secobarbital: 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

Barbiturates combined with opioids produce marked additive CNS and respiratory depression, which can lead to coma or death. Barbiturates may also lower opioid exposure through enzyme induction, but the pharmacodynamic risk dominates.

What this interaction means in plain words

Hydromorphone and Secobarbital 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.

Hydromorphone belongs to Musculoskeletal; Secobarbital belongs to Central Nervous System.

Evidence level: Moderate

Why it happens

Additive CNS and respiratory depression via GABA-A potentiation and opioid receptor agonism.

What to do

Avoid the combination where possible; if needed, use reduced doses with close monitoring of respiratory rate and level of consciousness. Counsel against alcohol.

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 Hydromorphone with Secobarbital?

MediHelp rates the interaction as major. Hydromorphone and Secobarbital 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. Barbiturates combined with opioids produce marked additive CNS and respiratory depression, which can lead to coma or death. Barbiturates may also lower opioid exposure through enzyme induction, but the pharmacodynamic risk dominates.

How serious is the interaction between Hydromorphone and Secobarbital?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination where possible; if needed, use reduced doses with close monitoring of respiratory rate and level of consciousness. Counsel against alcohol.

What other medicines interact with Hydromorphone?

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

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