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Medicines anastrozoleQuestion & answer

anastrozole · Medicine question

Can anastrozole (Arimidex) be used during pregnancy or breastfeeding?

iatroX medicinesPublished 8 November 2026

The answer

Answer

No, anastrozole (Arimidex) is contraindicated during both pregnancy and breastfeeding.

Sources for this answer

Arimidex 1mg Film-Coated TabletAstraZeneca UK Limited · emc · SmPC §4.6 Fertility, pregnancy and lactation · Version 31Document updated 27 August 2026

Sources checked 8 November 2026

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