Drug interactions
Doxapram + Ketamine
Severity: Major
Doxapram and Ketamine: 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
Both ketamine and doxapram can raise blood pressure and heart rate through sympathetic stimulation, and doxapram given while ketamine is still active may add to cardiovascular stress. Arrhythmias and marked hypertension are potential consequences.
What this interaction means in plain words
Doxapram and Ketamine 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.
Doxapram belongs to Central Nervous System; Ketamine belongs to Central Nervous System.
Why it happens
Additive sympathomimetic and pressor effects; the precise mechanism of arrhythmia risk is not well established.
What to do
Avoid using doxapram to reverse ketamine anesthesia; allow the ketamine effect to subside and support ventilation instead. If doxapram is unavoidable, monitor ECG and blood pressure continuously.
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 Ketamine
Other interactions of Doxapram
Frequently asked questions
Can I take Doxapram with Ketamine?
MediHelp rates the interaction as major. Doxapram and Ketamine 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. Both ketamine and doxapram can raise blood pressure and heart rate through sympathetic stimulation, and doxapram given while ketamine is still active may add to cardiovascular stress. Arrhythmias and marked hypertension are potential consequences.
How serious is the interaction between Doxapram and Ketamine?
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 using doxapram to reverse ketamine anesthesia; allow the ketamine effect to subside and support ventilation instead. If doxapram is unavoidable, monitor ECG and blood pressure continuously.
What other medicines interact with Ketamine?
MediHelp also lists interactions of Ketamine with, for example, Benzhydrocodone / acetaminophen, Brexanolone, Buprenorphine buccal. The full list is on the Ketamine page.
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