Drug interactions
Calcium / magnesium / potassium / sodium oxybates + Sevoflurane
Severity: Major
Calcium / magnesium / potassium / sodium oxybates and Sevoflurane: 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, and combining them with a volatile anesthetic can cause profound sedation, respiratory depression, and coma. The risk persists in the early period after oxybate dosing.
What this interaction means in plain words
Calcium / magnesium / potassium / sodium oxybates and Sevoflurane 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 and respiratory depression through GABA-B and related pathways.
What to do
Avoid giving the oxybate dose before anesthesia and inform the anesthesia team of recent use. Titrate sevoflurane to effect and monitor airway, ventilation and sedation closely into recovery.
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 Sevoflurane
Frequently asked questions
Can I take Calcium / magnesium / potassium / sodium oxybates with Sevoflurane?
MediHelp rates the interaction as major. Calcium / magnesium / potassium / sodium oxybates and Sevoflurane 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, and combining them with a volatile anesthetic can cause profound sedation, respiratory depression, and coma. The risk persists in the early period after oxybate dosing.
How serious is the interaction between Calcium / magnesium / potassium / sodium oxybates and Sevoflurane?
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 giving the oxybate dose before anesthesia and inform the anesthesia team of recent use. Titrate sevoflurane to effect and monitor airway, ventilation and sedation closely into recovery.
What other medicines interact with Sevoflurane?
MediHelp also lists interactions of Sevoflurane with, for example, Amiodarone, Amisulpride, Arsenic trioxide. The full list is on the Sevoflurane page.
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