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Drug interactions

Gentamicin + Terbutaline

Severity: Minor

Gentamicin and Terbutaline: 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

Both drugs can lower serum potassium, and gentamicin may also cause renal magnesium and potassium wasting. Combined use may add to hypokalemia and arrhythmic risk, although the effect is usually modest.

What this interaction means in plain words

Gentamicin and Terbutaline have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.

Gentamicin belongs to Anti Bacterial; Terbutaline belongs to Respiratory.

Evidence level: Low

Why it happens

Beta-2 mediated cellular potassium uptake combined with aminoglycoside-associated renal electrolyte wasting.

What to do

Check potassium and magnesium in patients on prolonged or high-dose therapy, and replace deficits.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Gentamicin with Terbutaline?

MediHelp rates the interaction as minor. Gentamicin and Terbutaline have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Both drugs can lower serum potassium, and gentamicin may also cause renal magnesium and potassium wasting. Combined use may add to hypokalemia and arrhythmic risk, although the effect is usually modest.

How serious is the interaction between Gentamicin and Terbutaline?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Check potassium and magnesium in patients on prolonged or high-dose therapy, and replace deficits.

What other medicines interact with Terbutaline?

MediHelp also lists interactions of Terbutaline with, for example, Carvedilol, Droperidol, Fexinidazole. The full list is on the Terbutaline page.

Full monographs, dosing and an interaction checker in the MediHelp app

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