Drug interactions
Isoproterenol + Pindolol
Severity: Major
Isoproterenol and Pindolol: major interaction.
Last updated Sources: US FDA label
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
Pindolol is a nonselective beta-blocker with partial agonist activity that competes with isoproterenol at beta-receptors. The effect of isoproterenol may be reduced, limiting its use in bradycardia or bronchospasm.
What this interaction means in plain words
Isoproterenol and Pindolol 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
Competitive pharmacodynamic antagonism at beta-1 and beta-2 adrenergic receptors.
What to do
Avoid combining where possible and use alternative therapy for beta-blocker related bradycardia or bronchospasm. If isoproterenol is required, titrate to response with close hemodynamic monitoring.
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 Isoproterenol
Frequently asked questions
Can I take Isoproterenol with Pindolol?
MediHelp rates the interaction as major. Isoproterenol and Pindolol 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. Pindolol is a nonselective beta-blocker with partial agonist activity that competes with isoproterenol at beta-receptors. The effect of isoproterenol may be reduced, limiting its use in bradycardia or bronchospasm.
How serious is the interaction between Isoproterenol and Pindolol?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid combining where possible and use alternative therapy for beta-blocker related bradycardia or bronchospasm. If isoproterenol is required, titrate to response with close hemodynamic monitoring.
What other medicines interact with Isoproterenol?
MediHelp also lists interactions of Isoproterenol with, for example, Adrenaline-articaine, Bisoprolol, Budesonide-formoterol. The full list is on the Isoproterenol page.
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