Drug interactions
Bendamustine + Ethinylestradiol
Severity: Minor
Bendamustine and Ethinylestradiol: minor 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
Ethinylestradiol is a weak CYP1A2 inhibitor and bendamustine is partly cleared via CYP1A2. Plasma bendamustine could rise slightly, but the effect is probably small.
What this interaction means in plain words
Bendamustine and Ethinylestradiol have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Weak inhibition of CYP1A2 may reduce bendamustine metabolism.
What to do
No dose change is usually needed; monitor blood counts as part of routine bendamustine therapy.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Bendamustine
Frequently asked questions
Can I take Bendamustine with Ethinylestradiol?
MediHelp rates the interaction as minor. Bendamustine and Ethinylestradiol have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Ethinylestradiol is a weak CYP1A2 inhibitor and bendamustine is partly cleared via CYP1A2. Plasma bendamustine could rise slightly, but the effect is probably small.
How serious is the interaction between Bendamustine and Ethinylestradiol?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No dose change is usually needed; monitor blood counts as part of routine bendamustine therapy.
What other medicines interact with Bendamustine?
MediHelp also lists interactions of Bendamustine with, for example, Axicabtagene ciloleucel, Brexucabtagene autoleucel, Chlorambucil. The full list is on the Bendamustine page.
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