Drug interactions
Bisoprolol + Pirbuterol
Severity: Moderate
Bisoprolol 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
Bisoprolol is highly beta-1 selective but can still weaken the bronchodilator response to pirbuterol, particularly at higher doses. Patients with asthma or COPD may experience reduced beta-agonist efficacy or bronchospasm.
What this interaction means in plain words
Bisoprolol 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 lung function and symptoms and keep the bisoprolol dose low. Reassess the need for beta-blockade in patients with poorly controlled 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 Bisoprolol
Frequently asked questions
Can I take Bisoprolol with Pirbuterol?
MediHelp rates the interaction as moderate. Bisoprolol 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. Bisoprolol is highly beta-1 selective but can still weaken the bronchodilator response to pirbuterol, particularly at higher doses. Patients with asthma or COPD may experience reduced beta-agonist efficacy or bronchospasm.
How serious is the interaction between Bisoprolol 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 lung function and symptoms and keep the bisoprolol dose low. Reassess the need for beta-blockade in patients with poorly controlled airway disease.
What other medicines interact with Bisoprolol?
MediHelp also lists interactions of Bisoprolol with, for example, Aldesleukin, Amifostine, Amiodarone. The full list is on the Bisoprolol page.
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