Drug interactions
Furosemide + Norepinephrine
Severity: Minor
Furosemide and Norepinephrine: 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
Norepinephrine has some beta-adrenergic activity that may shift potassium into cells, and furosemide promotes potassium loss. Hypokalemia may result, though in critically ill patients other factors usually dominate. Norepinephrine's pressor effect may also oppose diuretic-related blood pressure reduction.
What this interaction means in plain words
Furosemide and Norepinephrine 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
Beta-adrenergic intracellular potassium shift combined with furosemide renal potassium wasting.
What to do
Monitor serum potassium and replace as required in patients on vasopressor infusions receiving furosemide.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Furosemide and Norepinephrine, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 7 days on the web. No card needed.
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 Norepinephrine?
MediHelp rates the interaction as minor. Furosemide and Norepinephrine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Norepinephrine has some beta-adrenergic activity that may shift potassium into cells, and furosemide promotes potassium loss. Hypokalemia may result, though in critically ill patients other factors usually dominate. Norepinephrine's pressor effect may also oppose diuretic-related blood pressure reduction.
How serious is the interaction between Furosemide and Norepinephrine?
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 replace as required in patients on vasopressor infusions receiving furosemide.
What other medicines interact with Furosemide?
MediHelp also lists interactions of Furosemide with, for example, Amifostine, Amikacin, Carbenoxolone. The full list is on the Furosemide page.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
