Drug interactions
Anastrozole + Etrasimod
Severity: Minor
Anastrozole and Etrasimod: 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
Etrasimod reduces circulating lymphocytes and can raise infection risk. Anastrozole is an aromatase inhibitor without meaningful immunosuppressive activity, so no real additive effect is expected.
What this interaction means in plain words
Anastrozole and Etrasimod have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Anastrozole belongs to Oncology; Etrasimod belongs to Gastrointestinal Tract.
Why it happens
No established mechanism; anastrozole is not meaningfully immunosuppressive.
What to do
No change is routinely needed. Monitor for infection and follow etrasimod labeling for lymphocyte monitoring.
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 Anastrozole
- Anastrozole + Bazedoxifene / conjugated estrogens Contraindicated
- Anastrozole + Bazedoxifene-conjugated estrogens Contraindicated
- Anastrozole + Conjugated estrogens Contraindicated
- Anastrozole + Estradiol Contraindicated
- Anastrozole + Estrogens conjugated synthetic Contraindicated
- Anastrozole + Estrogens esterified Contraindicated
Other interactions of Etrasimod
- Abatacept + Etrasimod Major
- Amiodarone + Etrasimod Major
- Anagrelide + Etrasimod Major
- Anakinra + Etrasimod Major
- Anti-thymocyte + Etrasimod Major
- Asenapine + Etrasimod Major
Frequently asked questions
Can I take Anastrozole with Etrasimod?
MediHelp rates the interaction as minor. Anastrozole and Etrasimod have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Etrasimod reduces circulating lymphocytes and can raise infection risk. Anastrozole is an aromatase inhibitor without meaningful immunosuppressive activity, so no real additive effect is expected.
How serious is the interaction between Anastrozole and Etrasimod?
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 change is routinely needed. Monitor for infection and follow etrasimod labeling for lymphocyte monitoring.
What other medicines interact with Anastrozole?
MediHelp also lists interactions of Anastrozole with, for example, Bazedoxifene / conjugated estrogens, Bazedoxifene-conjugated estrogens, Conjugated estrogens. The full list is on the Anastrozole page.
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