Compare Arimidex vs. Femara

Head-to-head comparisons of medication uses, side effects, ratings, and more.

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Upsides
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Downsides
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Used for
  • Breast cancer
  • Adjuvant
  • Postmenopausal
  • Hormone receptor-positive. Breast cancer
  • Advanced
  • Postmenopausal
  • Following tamoxifen therapy. Breast cancer
  • Locally advanced or metastatic
  • Postmenopausal
  • Hormone receptor-positive or unknown
  • First-line
  • Breast cancer
  • Neoadjuvant treatment for hormone receptor-positive
  • Operable or potentially operable
  • Locally advanced disease in postmenopausal women. Breast cancer
  • Postmenopausal women at high risk; Prophylaxis
  • Breast cancer
  • Adjuvant
  • Postmenopausal
  • Hormone receptor-positive Breast cancer
  • Advanced
  • Postmenopausal
  • Following antiestrogen therapy Breast cancer
  • Extended adjuvant
  • Postmenopausal
  • Following 5 years of tamoxifen therapy Breast cancer
  • Locally advanced or metastatic
  • Postmenopausal
  • Hormone receptor-positive or unknown
  • First-line
  • Breast cancer
  • Neoadjuvant
  • Postmenopausal
  • Hormone receptor-positive Delayed puberty Endometriosis - Ovulation induction Ovulation induction - Polycystic ovary syndrome
Dosage forms
  • Pill
  • Pill
Price
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Reviews
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Side effects
The Arimidex (Anastrozole) FDA package insert doesn’t have numbers about how common side effects are.
The Femara (Letrozole) FDA package insert doesn’t have numbers about how common side effects are.
Risks and risk factors
No information currently available
No information currently available