Drug interactions
Dantrolene + Dextromoramide
Severity: Major
Dantrolene and Dextromoramide: 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
Dextromoramide is a potent opioid analgesic that causes sedation and respiratory depression, and dantrolene adds drowsiness and muscle weakness. Together they may increase the risk of excessive sedation and impaired breathing, particularly in frail patients or at higher doses.
What this interaction means in plain words
Dantrolene and Dextromoramide 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.
Why it happens
Additive CNS depression from opioid action combined with dantrolene sedation and muscle weakness.
What to do
Start with the lowest effective opioid dose and titrate slowly while monitoring sedation and respiratory rate. Counsel patients to avoid driving and other CNS depressants.
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 Dantrolene
Frequently asked questions
Can I take Dantrolene with Dextromoramide?
MediHelp rates the interaction as major. Dantrolene and Dextromoramide 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. Dextromoramide is a potent opioid analgesic that causes sedation and respiratory depression, and dantrolene adds drowsiness and muscle weakness. Together they may increase the risk of excessive sedation and impaired breathing, particularly in frail patients or at higher doses.
How serious is the interaction between Dantrolene and Dextromoramide?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Start with the lowest effective opioid dose and titrate slowly while monitoring sedation and respiratory rate. Counsel patients to avoid driving and other CNS depressants.
What other medicines interact with Dantrolene?
MediHelp also lists interactions of Dantrolene with, for example, Benzhydrocodone / acetaminophen, Buprenorphine long-acting, Buprenorphine subdermal implant. The full list is on the Dantrolene page.
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