Drug interactions
Gemtuzumab + Sorafenib
Severity: Moderate
Gemtuzumab and Sorafenib: 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
Gemtuzumab ozogamicin labeling notes QT prolongation as a risk, and sorafenib also can prolong the QT interval. Using both may raise the chance of ventricular arrhythmia, particularly with electrolyte abnormalities.
What this interaction means in plain words
Gemtuzumab and Sorafenib 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
Additive pharmacodynamic QT prolongation.
What to do
Obtain an ECG at baseline and monitor periodically, and correct potassium and magnesium abnormalities. Reassess if the QTc becomes markedly prolonged.
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 Sorafenib
Frequently asked questions
Can I take Gemtuzumab with Sorafenib?
MediHelp rates the interaction as moderate. Gemtuzumab and Sorafenib 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. Gemtuzumab ozogamicin labeling notes QT prolongation as a risk, and sorafenib also can prolong the QT interval. Using both may raise the chance of ventricular arrhythmia, particularly with electrolyte abnormalities.
How serious is the interaction between Gemtuzumab and Sorafenib?
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 an ECG at baseline and monitor periodically, and correct potassium and magnesium abnormalities. Reassess if the QTc becomes markedly prolonged.
What other medicines interact with Sorafenib?
MediHelp also lists interactions of Sorafenib with, for example, Adagrasib, Amiodarone, Amisulpride. The full list is on the Sorafenib page.
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