Drug interactions
Epinephrine + Gentamicin
Severity: Minor
Epinephrine and Gentamicin: 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
Epinephrine drives potassium into cells through beta-2 stimulation, while gentamicin can cause renal potassium and magnesium wasting. Together they may lower serum potassium, which can raise the risk of arrhythmias, particularly in critically ill patients.
What this interaction means in plain words
Epinephrine and Gentamicin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Epinephrine belongs to Endocrine; Gentamicin belongs to Anti Bacterial.
Why it happens
Additive hypokalemia from beta-2 mediated intracellular potassium shift (epinephrine) and aminoglycoside-induced renal tubular electrolyte wasting.
What to do
Monitor serum potassium and magnesium when both are given for more than a short period, and replace electrolytes as needed.
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 Gentamicin
- Cidofovir + Gentamicin Contraindicated
- Adefovir + Gentamicin Major
- Amikacin + Gentamicin Major
- Amlodipine-hydrochlorothiazide-valsartan + Gentamicin Major
- Amphotericin b deoxycholate + Gentamicin Major
- Amphotericin b + Gentamicin Major
Other interactions of Epinephrine
- Epinephrine + Isocarboxazid Contraindicated
- Epinephrine + Phenelzine Contraindicated
- Epinephrine + Tranylcypromine Contraindicated
- Acebutolol + Epinephrine Major
- Amitriptyline + Epinephrine Major
- Amoxapine + Epinephrine Major
Frequently asked questions
Can I take Epinephrine with Gentamicin?
MediHelp rates the interaction as minor. Epinephrine and Gentamicin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Epinephrine drives potassium into cells through beta-2 stimulation, while gentamicin can cause renal potassium and magnesium wasting. Together they may lower serum potassium, which can raise the risk of arrhythmias, particularly in critically ill patients.
How serious is the interaction between Epinephrine and Gentamicin?
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 serum potassium and magnesium when both are given for more than a short period, and replace electrolytes as needed.
What other medicines interact with Gentamicin?
MediHelp also lists interactions of Gentamicin with, for example, Cidofovir, Adefovir, Amikacin. The full list is on the Gentamicin page.
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