Drug interactions
Betaxolol + Ephedrine
Severity: Moderate
Betaxolol and Ephedrine: moderate 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
Betaxolol blocks the beta-adrenergic effects of ephedrine, reducing its cardiac stimulation and bronchodilation. Unopposed alpha-mediated vasoconstriction may cause hypertension with reflex bradycardia.
What this interaction means in plain words
Betaxolol and Ephedrine can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Betaxolol belongs to Cardiovascular; Ephedrine belongs to Cardiovascular.
Why it happens
Pharmacodynamic antagonism of beta-receptor effects with unopposed alpha-adrenergic stimulation.
What to do
Monitor blood pressure and heart rate when ephedrine is given to patients on betaxolol. Expect a diminished beta effect and titrate cautiously.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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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 Ephedrine
- Ephedrine + Isocarboxazid Contraindicated
- Ephedrine + Phenelzine Contraindicated
- Ephedrine + Procarbazine Contraindicated
- Ephedrine + Rasagiline Contraindicated
- Ephedrine + Selegiline Contraindicated
- Ephedrine + Tranylcypromine Contraindicated
Frequently asked questions
Can I take Betaxolol with Ephedrine?
MediHelp rates the interaction as moderate. Betaxolol and Ephedrine can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Betaxolol blocks the beta-adrenergic effects of ephedrine, reducing its cardiac stimulation and bronchodilation. Unopposed alpha-mediated vasoconstriction may cause hypertension with reflex bradycardia.
How serious is the interaction between Betaxolol and Ephedrine?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood pressure and heart rate when ephedrine is given to patients on betaxolol. Expect a diminished beta effect and titrate cautiously.
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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