Drug interactions
Isoproterenol + Pirbuterol
Severity: Moderate
Isoproterenol 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
Both drugs are beta-adrenergic agonists, so combining them can cause excessive tachycardia, palpitations, tremor and arrhythmias. Both can also lower serum potassium, compounding the arrhythmia risk.
What this interaction means in plain words
Isoproterenol 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
Additive beta-adrenergic stimulation with beta-2 mediated potassium shift into cells.
What to do
Avoid concurrent use where possible; if needed, monitor heart rate, ECG and serum potassium. Reduce or stop one agent if tachyarrhythmia occurs.
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 Isoproterenol
Frequently asked questions
Can I take Isoproterenol with Pirbuterol?
MediHelp rates the interaction as moderate. Isoproterenol 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. Both drugs are beta-adrenergic agonists, so combining them can cause excessive tachycardia, palpitations, tremor and arrhythmias. Both can also lower serum potassium, compounding the arrhythmia risk.
How serious is the interaction between Isoproterenol 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: Avoid concurrent use where possible; if needed, monitor heart rate, ECG and serum potassium. Reduce or stop one agent if tachyarrhythmia occurs.
What other medicines interact with Isoproterenol?
MediHelp also lists interactions of Isoproterenol with, for example, Adrenaline-articaine, Bisoprolol, Budesonide-formoterol. The full list is on the Isoproterenol page.
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