Drug interactions
Betaxolol + Lofexidine
Severity: Major
Betaxolol and Lofexidine: major interaction.
Last updated Sources: Base de donnees publique des medicaments (France)
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, a central alpha-2 agonist, lowers heart rate and blood pressure, and a beta-blocker adds to these effects. Together they can cause excessive bradycardia, hypotension, and syncope.
What this interaction means in plain words
Betaxolol 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.
Betaxolol belongs to Cardiovascular; Lofexidine belongs to Central Nervous System.
Why it happens
Additive pharmacodynamic effects from central sympatholysis and beta-adrenergic blockade.
What to do
Monitor pulse and blood pressure closely, especially during initiation and dose changes. Reduce doses or hold one drug if symptomatic bradycardia or hypotension develops.
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 Betaxolol
- Acebutolol + Betaxolol Major
- Aldesleukin + Betaxolol Major
- Amifostine + Betaxolol Major
- Amiodarone + Betaxolol Major
- Atenolol-chlorthalidone + Betaxolol Major
- Atenolol + Betaxolol 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 Betaxolol with Lofexidine?
MediHelp rates the interaction as major. Betaxolol 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, a central alpha-2 agonist, lowers heart rate and blood pressure, and a beta-blocker adds to these effects. Together they can cause excessive bradycardia, hypotension, and syncope.
How serious is the interaction between Betaxolol 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: Monitor pulse and blood pressure closely, especially during initiation and dose changes. Reduce doses or hold one drug if symptomatic bradycardia or hypotension develops.
What other medicines interact with Betaxolol?
MediHelp also lists interactions of Betaxolol with, for example, Acebutolol, Aldesleukin, Amifostine. The full list is on the Betaxolol page.
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