Drug interactions
Ethacrynic acid + Succinylcholine
Severity: Moderate
Ethacrynic acid and Succinylcholine: moderate 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
Ethacrynic acid is a loop diuretic that causes potassium and magnesium loss, which can alter neuromuscular blockade and arrhythmia risk. Succinylcholine raises potassium transiently, so the net effect is hard to predict.
What this interaction means in plain words
Ethacrynic acid and Succinylcholine can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Ethacrynic acid belongs to Cardiovascular; Succinylcholine belongs to Musculoskeletal.
Why it happens
Loop diuretic-induced electrolyte depletion alters neuromuscular excitability and opposes the potassium rise from succinylcholine.
What to do
Check serum potassium and magnesium before anesthesia and correct deficits. Monitor ECG and neuromuscular function.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Succinylcholine
Other interactions of Ethacrynic acid
Frequently asked questions
Can I take Ethacrynic acid with Succinylcholine?
MediHelp rates the interaction as moderate. Ethacrynic acid and Succinylcholine can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Ethacrynic acid is a loop diuretic that causes potassium and magnesium loss, which can alter neuromuscular blockade and arrhythmia risk. Succinylcholine raises potassium transiently, so the net effect is hard to predict.
How serious is the interaction between Ethacrynic acid and Succinylcholine?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Check serum potassium and magnesium before anesthesia and correct deficits. Monitor ECG and neuromuscular function.
What other medicines interact with Succinylcholine?
MediHelp also lists interactions of Succinylcholine with, for example, Amikacin, Bacitracin-neomycin-polymyxin, Capreomycin. The full list is on the Succinylcholine page.
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