Drug interactions
Dexfenfluramine + Sevoflurane
Severity: Minor
Dexfenfluramine and Sevoflurane: minor 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
Dexfenfluramine is a serotonergic anorectic withdrawn from the market in most regions, so concurrent use is uncommon. Its sympathomimetic effects could theoretically combine with anesthesia to cause hemodynamic instability, but the interaction is poorly documented.
What this interaction means in plain words
Dexfenfluramine and Sevoflurane have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Mechanism is not established; possible hemodynamic effects of serotonergic and sympathomimetic activity under anesthesia.
What to do
Monitor blood pressure and ECG during anesthesia if the patient has taken the drug recently. Treat hypertension or tachyarrhythmia symptomatically.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Sevoflurane
Frequently asked questions
Can I take Dexfenfluramine with Sevoflurane?
MediHelp rates the interaction as minor. Dexfenfluramine and Sevoflurane have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Dexfenfluramine is a serotonergic anorectic withdrawn from the market in most regions, so concurrent use is uncommon. Its sympathomimetic effects could theoretically combine with anesthesia to cause hemodynamic instability, but the interaction is poorly documented.
How serious is the interaction between Dexfenfluramine and Sevoflurane?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood pressure and ECG during anesthesia if the patient has taken the drug recently. Treat hypertension or tachyarrhythmia symptomatically.
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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