Drug interactions
Linezolid + Norepinephrine
Severity: Major
Linezolid and Norepinephrine: major 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
Linezolid can enhance pressor responses to norepinephrine, raising the risk of severe hypertension. Intravenous norepinephrine is titrated, but sensitivity may be increased.
What this interaction means in plain words
Linezolid and Norepinephrine can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Why it happens
MAO inhibition by linezolid reduces catecholamine breakdown and enhances pressor effects.
What to do
If norepinephrine is required, start at a low dose and titrate with continuous blood pressure monitoring. Consider an alternative antibiotic where feasible.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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Other interactions of Linezolid
- Amoxapine + Linezolid Contraindicated
- Atomoxetine + Linezolid Contraindicated
- Benzphetamine + Linezolid Contraindicated
- Brimonidine + Linezolid Contraindicated
- Bupropion-naltrexone + Linezolid Contraindicated
- Bupropion + Linezolid Contraindicated
Frequently asked questions
Can I take Linezolid with Norepinephrine?
MediHelp rates the interaction as major. Linezolid and Norepinephrine can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Linezolid can enhance pressor responses to norepinephrine, raising the risk of severe hypertension. Intravenous norepinephrine is titrated, but sensitivity may be increased.
How serious is the interaction between Linezolid and Norepinephrine?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: If norepinephrine is required, start at a low dose and titrate with continuous blood pressure monitoring. Consider an alternative antibiotic where feasible.
What other medicines interact with Linezolid?
MediHelp also lists interactions of Linezolid with, for example, Amoxapine, Atomoxetine, Benzphetamine. The full list is on the Linezolid page.
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