Drug interactions
Nadolol + Propranolol
Severity: Major
Nadolol and Propranolol: 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
Both are nonselective beta blockers, so taking them together is therapeutic duplication. This can cause profound bradycardia, hypotension, heart block and bronchospasm in susceptible patients.
What this interaction means in plain words
Nadolol and Propranolol 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.
Nadolol belongs to Cardiovascular; Propranolol belongs to Cardiovascular.
Why it happens
Additive pharmacodynamic nonselective beta-adrenergic blockade.
What to do
Avoid combining them and select one agent. If overlap occurs during a transition, monitor heart rate, blood pressure and respiratory status.
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 Propranolol
- Propranolol + Thioridazine Contraindicated
- Acebutolol + Propranolol Major
- Adrenaline-articaine + Propranolol Major
- Albuterol + Propranolol Major
- Amifostine + Propranolol Major
- Amiodarone + Propranolol Major
Other interactions of Nadolol
- Acebutolol + Nadolol Major
- Adrenaline-articaine + Nadolol Major
- Albuterol + Nadolol Major
- Amifostine + Nadolol Major
- Amiodarone + Nadolol Major
- Arformoterol + Nadolol Major
Frequently asked questions
Can I take Nadolol with Propranolol?
MediHelp rates the interaction as major. Nadolol and Propranolol 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. Both are nonselective beta blockers, so taking them together is therapeutic duplication. This can cause profound bradycardia, hypotension, heart block and bronchospasm in susceptible patients.
How serious is the interaction between Nadolol and Propranolol?
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 them and select one agent. If overlap occurs during a transition, monitor heart rate, blood pressure and respiratory status.
What other medicines interact with Propranolol?
MediHelp also lists interactions of Propranolol with, for example, Thioridazine, Acebutolol, Adrenaline-articaine. The full list is on the Propranolol page.
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