Drug interactions
Methoxyflurane + Midodrine
Severity: Major
Methoxyflurane and Midodrine: 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
Halogenated anesthetics like methoxyflurane can sensitize the myocardium to catecholamines. With midodrine, arrhythmias and hypertension are possible, though data are limited.
What this interaction means in plain words
Methoxyflurane and Midodrine 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
Myocardial sensitization to catecholamines combined with alpha-agonist vasoconstriction; mechanism not firmly established.
What to do
Hold midodrine before anesthesia with methoxyflurane where feasible. If combined, 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 Midodrine
- Isocarboxazid + Midodrine Contraindicated
- Midodrine + Phenelzine Contraindicated
- Midodrine + Tranylcypromine Contraindicated
- Dextroamphetamine + Midodrine Major
- Dihydroergotamine intranasal + Midodrine Major
- Dihydroergotamine + Midodrine Major
Frequently asked questions
Can I take Methoxyflurane with Midodrine?
MediHelp rates the interaction as major. Methoxyflurane and Midodrine 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. Halogenated anesthetics like methoxyflurane can sensitize the myocardium to catecholamines. With midodrine, arrhythmias and hypertension are possible, though data are limited.
How serious is the interaction between Methoxyflurane and Midodrine?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Hold midodrine before anesthesia with methoxyflurane where feasible. If combined, monitor ECG and blood pressure continuously.
What other medicines interact with Midodrine?
MediHelp also lists interactions of Midodrine with, for example, Isocarboxazid, Phenelzine, Tranylcypromine. The full list is on the Midodrine page.
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