Drug interactions
Betaxolol + Pirbuterol
Severity: Moderate
Betaxolol and Pirbuterol: 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 is a beta-1 selective blocker that can reduce the bronchodilating effect of pirbuterol. Selectivity decreases at higher doses, so bronchospasm may occur in susceptible patients.
What this interaction means in plain words
Betaxolol and Pirbuterol 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.
Why it happens
Pharmacodynamic antagonism between a beta-blocker and a beta-2 agonist at beta-adrenergic receptors.
What to do
Monitor respiratory symptoms and the response to pirbuterol. Use the lowest effective betaxolol dose and consider alternatives in patients with significant airway disease.
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
Frequently asked questions
Can I take Betaxolol with Pirbuterol?
MediHelp rates the interaction as moderate. Betaxolol and Pirbuterol 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 is a beta-1 selective blocker that can reduce the bronchodilating effect of pirbuterol. Selectivity decreases at higher doses, so bronchospasm may occur in susceptible patients.
How serious is the interaction between Betaxolol and Pirbuterol?
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 respiratory symptoms and the response to pirbuterol. Use the lowest effective betaxolol dose and consider alternatives in patients with significant airway disease.
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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