ARIMIDEX vs TALZENNA

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 22, 2026·How we rate

Possible drug interaction. ARIMIDEX and TALZENNA are different prescription medicines. Combining or switching between them can cause interactions — talk to a pharmacist or prescriber before making changes. This page is not medical advice.

Attribute	ARIMIDEX	TALZENNA
Rating	70/100	64/100
Pharmacy pays	~$4.15 /30	—
Type	RX	RX
Active ingredient	ANASTROZOLE	TALAZOPARIB TOSYLATE
Manufacturer	Astrazeneca	Pfizer
Dosage forms	Tablet	Capsule
Drug class	Aromatase Inhibitor	Poly(Adp-Ribose) Polymerase Inhibitor
Boxed warning	None	None
Treats	Breast Neoplasms	Breast Neoplasms

arimidex talzenna

Rating

70/100

64/100

Pharmacy pays

~$4.15 /30

—

Type

Active ingredient

ANASTROZOLE

TALAZOPARIB TOSYLATE

Manufacturer

Astrazeneca

Pfizer

Dosage forms

Tablet

Capsule

Drug class

Aromatase Inhibitor

Poly(Adp-Ribose) Polymerase Inhibitor

Boxed warning

None

Treats

Breast Neoplasms

Frequently asked questions

Which is better-rated, Arimidex or Talzenna?

By our independent rating, Arimidex scores higher — 3.5 vs 3.2 out of 5 for Talzenna. Ratings are based on FDA regulatory (recall-safety) data.

What is the difference between Arimidex and Talzenna?

Arimidex contains Anastrozole, while Talzenna contains Talazoparib Tosylate — they have different active ingredients.

Ratings are based on FDA regulatory (recall-safety) data. This comparison is for general reference only — not medical advice. Always consult a licensed professional before choosing or switching a medication.