CLIMARA vs FEMRING

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated June 7, 2026·How we rate

Possible drug interaction. CLIMARA and FEMRING 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	CLIMARA	FEMRING
Rating	New	New
Pharmacy pays	$6.55 /g	$6.55 /g
Type	RX	RX
Active ingredient	ESTRADIOL	ESTRADIOL ACETATE
Manufacturer	Bayer Hlthcare	Millicent Mfg Pr
Dosage forms	Patch	Ring
Drug class	Estrogen	Estrogen
Boxed warning	Boxed warning	Boxed warning
Treats	Breast Neoplasms, Hypogonadism, Premature Menopause	Breast Neoplasms, Hypogonadism, Premature Menopause

climara femring

Rating

New

Pharmacy pays

$6.55 /g

Type

Active ingredient

ESTRADIOL

ESTRADIOL ACETATE

Manufacturer

Bayer Hlthcare

Millicent Mfg Pr

Dosage forms

Patch

Ring

Drug class

Estrogen

Boxed warning

Treats

Breast Neoplasms, Hypogonadism, Premature Menopause

Frequently asked questions

Which is cheaper, Climara or Femring?

Pharmacies pay about the same to acquire either one — roughly $6.55 per gm, per the CMS NADAC survey. That is not what you will be charged: your price is set by your insurer and the pharmacy, not by what the drug cost them.

What is the difference between Climara and Femring?

Climara contains Estradiol, while Femring contains Estradiol Acetate — 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.