Drug interactions
Oxazepam + Oxymorphone
Severity: Major
Oxazepam and Oxymorphone: 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
Concurrent opioids and benzodiazepines can cause profound sedation, respiratory depression, coma and death, as stated in a boxed warning. Risk is highest at higher doses and in older or respiratory-compromised patients.
What this interaction means in plain words
Oxazepam and Oxymorphone 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.
Oxazepam belongs to Central Nervous System; Oxymorphone belongs to Musculoskeletal.
Why it happens
Additive CNS and respiratory depression via opioid receptors and GABA-A potentiation.
What to do
Avoid the combination where possible; if needed, use the lowest doses for the shortest duration and monitor closely for sedation and respiratory depression. Counsel patients and caregivers on warning signs.
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 Oxymorphone
- Alvimopan + Oxymorphone Contraindicated
- Ethanol + Oxymorphone Contraindicated
- Isocarboxazid + Oxymorphone Contraindicated
- Olanzapine / samidorphan + Oxymorphone Contraindicated
- Oxymorphone + Phenelzine Contraindicated
- Oxymorphone + Selegiline transdermal Contraindicated
Other interactions of Oxazepam
- Calcium / magnesium / potassium / sodium oxybates + Oxazepam Contraindicated
- Oxazepam + Sodium oxybate Contraindicated
- Alfentanil + Oxazepam Major
- Amobarbital + Oxazepam Major
- Baclofen + Oxazepam Major
- Belladonna and opium + Oxazepam Major
Frequently asked questions
Can I take Oxazepam with Oxymorphone?
MediHelp rates the interaction as major. Oxazepam and Oxymorphone 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. Concurrent opioids and benzodiazepines can cause profound sedation, respiratory depression, coma and death, as stated in a boxed warning. Risk is highest at higher doses and in older or respiratory-compromised patients.
How serious is the interaction between Oxazepam and Oxymorphone?
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 the lowest doses for the shortest duration and monitor closely for sedation and respiratory depression. Counsel patients and caregivers on warning signs.
What other medicines interact with Oxymorphone?
MediHelp also lists interactions of Oxymorphone with, for example, Alvimopan, Ethanol, Isocarboxazid. The full list is on the Oxymorphone page.
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