Drug interactions
Clonidine + Nadolol
Severity: Major
Clonidine and Nadolol: 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
Both drugs slow heart rate, and combined use may cause significant bradycardia. Beta-blockers also exaggerate rebound hypertension after clonidine withdrawal.
What this interaction means in plain words
Clonidine and Nadolol 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.
Clonidine belongs to Cardiovascular; Nadolol belongs to Cardiovascular.
Why it happens
Additive bradycardic effects and unopposed alpha-adrenergic stimulation during clonidine withdrawal.
What to do
Monitor heart rate and blood pressure. When stopping, withdraw nadolol several days before tapering clonidine gradually.
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 Clonidine
- Acebutolol + Clonidine Major
- Amifostine + Clonidine Major
- Amiodarone + Clonidine Major
- Amoxapine + Clonidine Major
- Atenolol-chlorthalidone + Clonidine Major
- Atenolol + Clonidine Major
Other interactions of Nadolol
Frequently asked questions
Can I take Clonidine with Nadolol?
MediHelp rates the interaction as major. Clonidine and Nadolol 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 drugs slow heart rate, and combined use may cause significant bradycardia. Beta-blockers also exaggerate rebound hypertension after clonidine withdrawal.
How serious is the interaction between Clonidine and Nadolol?
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 heart rate and blood pressure. When stopping, withdraw nadolol several days before tapering clonidine gradually.
What other medicines interact with Clonidine?
MediHelp also lists interactions of Clonidine with, for example, Acebutolol, Amifostine, Amiodarone. The full list is on the Clonidine page.
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