Drug interactions
Furosemide + Succinylcholine
Severity: Minor
Furosemide and Succinylcholine: 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
Succinylcholine causes a transient rise in serum potassium, while furosemide causes potassium loss. Furosemide-induced hypokalemia or hypomagnesemia may alter the intensity and duration of neuromuscular blockade and contribute to arrhythmia risk. The net effect is variable and generally modest.
What this interaction means in plain words
Furosemide and Succinylcholine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Furosemide belongs to Cardiovascular; Succinylcholine belongs to Musculoskeletal.
Why it happens
Opposing effects on serum potassium, with diuretic-related electrolyte disturbances altering neuromuscular transmission.
What to do
Measure potassium and magnesium before surgery and correct deficits. Monitor neuromuscular blockade and ECG during and after administration.
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 Succinylcholine
Other interactions of Furosemide
- Amifostine + Furosemide Major
- Amikacin + Furosemide Major
- Carbenoxolone + Furosemide Major
- Cephaloridine + Furosemide Major
- Cisplatin + Furosemide Major
- Digoxin + Furosemide Major
Frequently asked questions
Can I take Furosemide with Succinylcholine?
MediHelp rates the interaction as minor. Furosemide and Succinylcholine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Succinylcholine causes a transient rise in serum potassium, while furosemide causes potassium loss. Furosemide-induced hypokalemia or hypomagnesemia may alter the intensity and duration of neuromuscular blockade and contribute to arrhythmia risk. The net effect is variable and generally modest.
How serious is the interaction between Furosemide and Succinylcholine?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Measure potassium and magnesium before surgery and correct deficits. Monitor neuromuscular blockade and ECG during and after administration.
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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