What Is Estrogens, Esterified?

Estrogens, Esterified is an oral estrogen medication used to treat menopausal symptoms, prevent osteoporosis, and manage certain hormonal conditions.

Sold under the brand name Menest (manufactured by Pfizer), esterified estrogens are a mixture of synthetic estrogens that mimic the effects of the estrogen your body naturally produces. The original brand Estratab has been discontinued, but Menest and generic versions remain available.

Estrogens, Esterified belongs to the estrogens drug class. It is not a controlled substance, meaning it doesn't require the special prescribing restrictions that apply to medications like opioids or stimulants. A generic version is available, which can significantly reduce cost.

What Is Estrogens, Esterified Used For?

The FDA has approved Estrogens, Esterified for several conditions:

Menopausal Symptoms

• Hot flashes (vasomotor symptoms): The most common reason this medication is prescribed. It reduces the frequency and severity of hot flashes and night sweats.
• Vaginal dryness and atrophy: Estrogen helps restore moisture and tissue health in the vaginal and vulvar areas.

Hormonal Conditions

• Female hypogonadism: When the body doesn't produce enough estrogen on its own.
• Primary ovarian failure: When the ovaries stop functioning before age 40.
• Female castration (surgical menopause): After removal of the ovaries.

Bone Health

• Osteoporosis prevention: Estrogen helps maintain bone density after menopause, reducing the risk of fractures.

Cancer Treatment

• Breast cancer: Used as palliative treatment in selected postmenopausal patients.
• Prostate cancer: Used for advanced androgen-dependent prostate cancer.

Some providers also prescribe Estrogens, Esterified off-label for gender-affirming hormone therapy (feminizing) and dysfunctional uterine bleeding.

How Is Estrogens, Esterified Taken?

Estrogens, Esterified comes as an oral tablet in three available strengths:

• 0.3 mg
• 0.625 mg
• 1.25 mg

(The 2.5 mg strength was discontinued by Pfizer in 2018.)

Typical Dosing

• Menopausal symptoms: 0.3 mg to 1.25 mg daily
• Female hypogonadism: 2.5 mg to 7.5 mg daily
• Breast cancer (palliative): 10 mg three times daily
• Prostate cancer: 1.25 mg to 2.5 mg three times daily

How to Take It

• Take by mouth once daily, with or without food
• Many doctors prescribe a cyclic schedule: 3 weeks on, 1 week off, to mimic the natural menstrual cycle
• Take at the same time each day for the most consistent results
• If you have a uterus, your doctor will likely also prescribe a progestin to protect against endometrial cancer

For more on how this medication works, see our article on the mechanism of action of Estrogens, Esterified.

Who Should Not Take Estrogens, Esterified?

This medication is not safe for everyone. Estrogens, Esterified is contraindicated if you have:

• Known or suspected pregnancy (Category X — can cause birth defects)
• Undiagnosed abnormal vaginal bleeding
• Known or suspected breast cancer (except for palliative treatment)
• Estrogen-dependent tumors
• Active blood clots (DVT or pulmonary embolism)
• Recent stroke or heart attack
• Liver disease or dysfunction
• Known blood clotting disorders (protein C, protein S, or antithrombin deficiency)
• Allergy to esterified estrogens

Use with caution if you have a history of gallbladder disease, diabetes, epilepsy, migraines, or depression. Your doctor should weigh the benefits against the risks.

For a full breakdown of side effects, read our guide on Estrogens, Esterified side effects.

How Much Does Estrogens, Esterified Cost?

Without insurance, Estrogens, Esterified typically costs $80 to $200+ per month, depending on your dosage and pharmacy.

Here's how to bring that down:

• Generic version: Available and significantly cheaper than brand-name Menest. About $86 for 30 tablets of 0.625 mg with a GoodRx coupon, or as low as $80.79 with GoodRx Gold.
• Insurance: Generic esterified estrogens are generally covered by most commercial plans as a Tier 2 or Tier 3 medication. Medicare Part D plans typically cover it as well.
• Manufacturer assistance: Pfizer's RxPathways program may offer help for eligible patients taking Menest brand.
• Patient assistance programs: Prescription Hope offers access to Menest for about $70/month. NeedyMeds and RxAssist list additional programs.

For a complete breakdown of savings options, check our guide to saving money on Estrogens, Esterified.

Important Safety Information

Estrogens, Esterified carries an FDA boxed warning about the increased risk of endometrial cancer when estrogen is used without a progestin. Close clinical monitoring and appropriate diagnostic measures (including endometrial sampling when indicated) are important.

As of late 2025, the FDA began removing boxed warnings related to cardiovascular disease, breast cancer, and probable dementia from menopausal hormone therapy products, though the endometrial cancer warning for estrogen-alone products remains.

Final Thoughts

Estrogens, Esterified is a well-established oral estrogen option for managing menopausal symptoms, preventing osteoporosis, and treating hormonal deficiencies. With generic versions available, it's an affordable option for many patients — especially with discount programs and insurance coverage.

If you're looking for a pharmacy that has Estrogens, Esterified in stock, Medfinder can help you find one near you. And if you need a prescriber, our doctor-finding guide walks you through your options.