Drug interactions
Asenapine + Salbutamol
Severity: Moderate
Asenapine and Salbutamol: 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
Asenapine can prolong the QT interval, and high-dose salbutamol can cause tachycardia and hypokalemia that increase arrhythmia risk. Together they may add to the risk of QT-related arrhythmias, particularly in susceptible patients.
What this interaction means in plain words
Asenapine and Salbutamol 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.
Asenapine belongs to Central Nervous System; Salbutamol belongs to Respiratory.
Why it happens
Additive QT prolongation, with beta-2 agonist-induced hypokalemia and tachycardia as contributors.
What to do
Check potassium and obtain an ECG if the patient has other QT risk factors or uses high-dose or nebulised salbutamol; correct electrolyte disturbances.
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 Salbutamol
Other interactions of Asenapine
- Asenapine + Pimozide Contraindicated
- Asenapine + Thioridazine Contraindicated
- Asenapine + Vandetanib Contraindicated
- Adagrasib + Asenapine Major
- Alfentanil + Asenapine Major
- Alfuzosin + Asenapine Major
Frequently asked questions
Can I take Asenapine with Salbutamol?
MediHelp rates the interaction as moderate. Asenapine and Salbutamol 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. Asenapine can prolong the QT interval, and high-dose salbutamol can cause tachycardia and hypokalemia that increase arrhythmia risk. Together they may add to the risk of QT-related arrhythmias, particularly in susceptible patients.
How serious is the interaction between Asenapine and Salbutamol?
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 potassium and obtain an ECG if the patient has other QT risk factors or uses high-dose or nebulised salbutamol; correct electrolyte disturbances.
What other medicines interact with Salbutamol?
MediHelp also lists interactions of Salbutamol with, for example, Arsenic trioxide, Carvedilol, Droperidol. The full list is on the Salbutamol page.
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