Drug interactions
Calcium / magnesium / potassium / sodium oxybates + Dantrolene
Severity: Major
Calcium / magnesium / potassium / sodium oxybates and Dantrolene: 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
Oxybates are potent CNS depressants that can cause respiratory depression, and dantrolene adds sedation and muscle weakness. Together they may cause profound sedation, respiratory depression, coma or death.
What this interaction means in plain words
Calcium / magnesium / potassium / sodium oxybates and Dantrolene 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 central nervous system depression from oxybate with dantrolene's sedative and muscle-weakening effects.
What to do
Avoid the combination where possible; if unavoidable, use the lowest effective doses and monitor closely for sedation and respiratory depression. Consider an alternative muscle relaxant or dose reduction of either drug.
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 Calcium / magnesium / potassium / sodium oxybates with Dantrolene?
MediHelp rates the interaction as major. Calcium / magnesium / potassium / sodium oxybates and Dantrolene 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. Oxybates are potent CNS depressants that can cause respiratory depression, and dantrolene adds sedation and muscle weakness. Together they may cause profound sedation, respiratory depression, coma or death.
How serious is the interaction between Calcium / magnesium / potassium / sodium oxybates and Dantrolene?
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 unavoidable, use the lowest effective doses and monitor closely for sedation and respiratory depression. Consider an alternative muscle relaxant or dose reduction of either drug.
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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