Drug interactions
Protriptyline + Sorafenib
Severity: Moderate
Protriptyline 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
Both drugs can prolong the QT interval, and tricyclic antidepressants carry arrhythmia risk especially in overdose or with electrolyte disturbance. Combined use may increase this risk.
What this interaction means in plain words
Protriptyline 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 QT prolongation through pharmacodynamic effects.
What to do
Obtain a baseline ECG and monitor periodically. Correct electrolyte abnormalities or consider another antidepressant.
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 Protriptyline with Sorafenib?
MediHelp rates the interaction as moderate. Protriptyline 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. Both drugs can prolong the QT interval, and tricyclic antidepressants carry arrhythmia risk especially in overdose or with electrolyte disturbance. Combined use may increase this risk.
How serious is the interaction between Protriptyline 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 a baseline ECG and monitor periodically. Correct electrolyte abnormalities or consider another antidepressant.
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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