Drug interactions
Bisoprolol + Norepinephrine
Severity: Major
Bisoprolol and Norepinephrine: major interaction.
Last updated Sources: UK SmPC
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
Beta-blockade can alter the response to norepinephrine. Bisoprolol may blunt its cardiac beta-1 effects, while unopposed alpha stimulation can cause marked hypertension with reflex bradycardia.
What this interaction means in plain words
Bisoprolol 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
Pharmacodynamic antagonism at beta-1 receptors, leaving alpha-adrenergic vasoconstriction relatively unopposed.
What to do
Monitor blood pressure and heart rate continuously during norepinephrine infusion in patients taking bisoprolol. Titrate the infusion to effect and be prepared to treat bradycardia.
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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References
Other interactions of Bisoprolol
Frequently asked questions
Can I take Bisoprolol with Norepinephrine?
MediHelp rates the interaction as major. Bisoprolol 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. Beta-blockade can alter the response to norepinephrine. Bisoprolol may blunt its cardiac beta-1 effects, while unopposed alpha stimulation can cause marked hypertension with reflex bradycardia.
How serious is the interaction between Bisoprolol 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: Monitor blood pressure and heart rate continuously during norepinephrine infusion in patients taking bisoprolol. Titrate the infusion to effect and be prepared to treat bradycardia.
What other medicines interact with Bisoprolol?
MediHelp also lists interactions of Bisoprolol with, for example, Aldesleukin, Amifostine, Amiodarone. The full list is on the Bisoprolol page.
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