Drug interactions
Ipratropium-salbutamol + Lofexidine
Severity: Moderate
Ipratropium-salbutamol and Lofexidine: 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
Lofexidine can prolong the QT interval and cause bradycardia and hypotension, while salbutamol may add to QT risk through hypokalemia and tachycardia. The opposing hemodynamic effects can also complicate assessment of heart rate and blood pressure.
What this interaction means in plain words
Ipratropium-salbutamol and Lofexidine 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.
Ipratropium-salbutamol belongs to Respiratory; Lofexidine belongs to Central Nervous System.
Why it happens
Additive QT prolongation, with opposing alpha-2 agonist and beta-agonist hemodynamic effects.
What to do
Check ECG and electrolytes at baseline in patients with cardiac risk factors and monitor heart rate and blood pressure. Correct hypokalemia and minimize salbutamol dosing where possible.
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 Ipratropium-salbutamol
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 Ipratropium-salbutamol with Lofexidine?
MediHelp rates the interaction as moderate. Ipratropium-salbutamol and Lofexidine 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. Lofexidine can prolong the QT interval and cause bradycardia and hypotension, while salbutamol may add to QT risk through hypokalemia and tachycardia. The opposing hemodynamic effects can also complicate assessment of heart rate and blood pressure.
How serious is the interaction between Ipratropium-salbutamol and Lofexidine?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Check ECG and electrolytes at baseline in patients with cardiac risk factors and monitor heart rate and blood pressure. Correct hypokalemia and minimize salbutamol dosing where possible.
What other medicines interact with Ipratropium-salbutamol?
MediHelp also lists interactions of Ipratropium-salbutamol with, for example, Amisulpride, Arsenic trioxide, Carvedilol. The full list is on the Ipratropium-salbutamol page.
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