Drug interactions
Fluphenazine + Salbutamol
Severity: Moderate
Fluphenazine 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
Fluphenazine can prolong the QT interval, and salbutamol may increase arrhythmia risk through hypokalemia and tachycardia. Phenothiazine-related QT effects are more important when electrolyte disturbances are present.
What this interaction means in plain words
Fluphenazine 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.
Fluphenazine belongs to Central Nervous System; Salbutamol belongs to Respiratory.
Why it happens
Additive QT prolongation, with beta-2 agonist-induced hypokalemia contributing.
What to do
Obtain a baseline ECG and check potassium and magnesium. Monitor ECG when salbutamol is used at high or repeated doses.
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 Fluphenazine
- Arsenic trioxide + Fluphenazine Contraindicated
- Dofetilide + Fluphenazine Contraindicated
- Fluphenazine + Ibutilide Contraindicated
- Fluphenazine + Pimozide Contraindicated
- Adagrasib + Fluphenazine Major
- Alfentanil + Fluphenazine Major
Frequently asked questions
Can I take Fluphenazine with Salbutamol?
MediHelp rates the interaction as moderate. Fluphenazine 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. Fluphenazine can prolong the QT interval, and salbutamol may increase arrhythmia risk through hypokalemia and tachycardia. Phenothiazine-related QT effects are more important when electrolyte disturbances are present.
How serious is the interaction between Fluphenazine 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: Obtain a baseline ECG and check potassium and magnesium. Monitor ECG when salbutamol is used at high or repeated doses.
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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