Drug interactions
Famotidine + Ponatinib
Severity: Moderate
Famotidine and Ponatinib: 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
Ponatinib solubility is pH dependent and gastric acid suppression may reduce its absorption. Clinically significant reductions in exposure have been limited, but the effect could compromise leukemia control.
What this interaction means in plain words
Famotidine and Ponatinib 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.
Famotidine belongs to Gastrointestinal Tract; Ponatinib belongs to Oncology.
Why it happens
Increased gastric pH may reduce ponatinib solubility and absorption.
What to do
Monitor hematologic and molecular response; consider separating ponatinib from the H2 blocker or using an alternative if response is suboptimal.
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 Famotidine
Other interactions of Ponatinib
Frequently asked questions
Can I take Famotidine with Ponatinib?
MediHelp rates the interaction as moderate. Famotidine and Ponatinib 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. Ponatinib solubility is pH dependent and gastric acid suppression may reduce its absorption. Clinically significant reductions in exposure have been limited, but the effect could compromise leukemia control.
How serious is the interaction between Famotidine and Ponatinib?
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 hematologic and molecular response; consider separating ponatinib from the H2 blocker or using an alternative if response is suboptimal.
What other medicines interact with Famotidine?
MediHelp also lists interactions of Famotidine with, for example, Atazanavir, Dasatinib, Infigratinib. The full list is on the Famotidine page.
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