Drug interactions
Salbutamol + Valbenazine
Severity: Moderate
Salbutamol and Valbenazine: 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
Valbenazine can prolong the QT interval at higher exposures. Salbutamol may add to arrhythmic risk through hypokalemia and tachycardia, especially at high doses.
What this interaction means in plain words
Salbutamol and Valbenazine 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.
Salbutamol belongs to Respiratory; Valbenazine belongs to Central Nervous System.
Why it happens
Additive QT prolongation, with beta-2 agonist induced hypokalemia.
What to do
Monitor ECG and potassium in patients with other QT risk factors or on high-dose 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 Valbenazine
- Deutetrabenazine + Valbenazine Contraindicated
- Tranylcypromine + Valbenazine Contraindicated
- Amiodarone + Valbenazine Major
- Amisulpride + Valbenazine Major
- Apalutamide + Valbenazine Major
- Carbamazepine + Valbenazine Major
Frequently asked questions
Can I take Salbutamol with Valbenazine?
MediHelp rates the interaction as moderate. Salbutamol and Valbenazine 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. Valbenazine can prolong the QT interval at higher exposures. Salbutamol may add to arrhythmic risk through hypokalemia and tachycardia, especially at high doses.
How serious is the interaction between Salbutamol and Valbenazine?
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 ECG and potassium in patients with other QT risk factors or on high-dose 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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