Drug interactions
Atenolol + Lofexidine
Severity: Major
Atenolol and Lofexidine: 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
Lofexidine reduces heart rate and blood pressure through central alpha-2 stimulation, and atenolol adds beta-blocker effects. The combination can cause excessive bradycardia, hypotension and syncope.
What this interaction means in plain words
Atenolol and Lofexidine 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.
Atenolol belongs to Cardiovascular; Lofexidine belongs to Central Nervous System.
Why it happens
Additive pharmacodynamic lowering of heart rate and blood pressure via central sympatholysis and beta-1 blockade.
What to do
Check pulse and blood pressure before each dose and hold or reduce doses if bradycardia or hypotension appears. Avoid in patients with baseline bradycardia or conduction disease.
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 Atenolol
- Amifostine + Atenolol Major
- Amiodarone + Atenolol Major
- Atenolol + Atenolol-chlorthalidone Major
- Atenolol + Betaxolol Major
- Atenolol + Bisoprolol Major
- Atenolol + Carvedilol Major
Other interactions of Lofexidine
- Adagrasib + Lofexidine Major
- Alfuzosin + Lofexidine Major
- Amiodarone + Lofexidine Major
- Amisulpride + Lofexidine Major
- Anagrelide + Lofexidine Major
- Apomorphine + Lofexidine Major
Frequently asked questions
Can I take Atenolol with Lofexidine?
MediHelp rates the interaction as major. Atenolol and Lofexidine 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. Lofexidine reduces heart rate and blood pressure through central alpha-2 stimulation, and atenolol adds beta-blocker effects. The combination can cause excessive bradycardia, hypotension and syncope.
How serious is the interaction between Atenolol and Lofexidine?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Check pulse and blood pressure before each dose and hold or reduce doses if bradycardia or hypotension appears. Avoid in patients with baseline bradycardia or conduction disease.
What other medicines interact with Atenolol?
MediHelp also lists interactions of Atenolol with, for example, Amifostine, Amiodarone, Atenolol-chlorthalidone. The full list is on the Atenolol page.
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