Drug interactions
Salbutamol + Trifluoperazine
Severity: Moderate
Salbutamol and Trifluoperazine: 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
Trifluoperazine is a phenothiazine that can prolong the QT interval, and salbutamol may add to arrhythmic risk through hypokalemia and tachycardia. The legacy sedation concern is not clinically established.
What this interaction means in plain words
Salbutamol and Trifluoperazine 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
Possible additive QT prolongation, with beta-2 agonist induced hypokalemia.
What to do
Monitor potassium and ECG when high-dose salbutamol is used in patients on trifluoperazine with other QT risk factors.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Salbutamol and Trifluoperazine, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 14 days on the web. No card needed.
Other interactions of Salbutamol
Frequently asked questions
Can I take Salbutamol with Trifluoperazine?
MediHelp rates the interaction as moderate. Salbutamol and Trifluoperazine 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. Trifluoperazine is a phenothiazine that can prolong the QT interval, and salbutamol may add to arrhythmic risk through hypokalemia and tachycardia. The legacy sedation concern is not clinically established.
How serious is the interaction between Salbutamol and Trifluoperazine?
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 potassium and ECG when high-dose salbutamol is used in patients on trifluoperazine with other QT risk factors.
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.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
