Estrace ingredients peg?

What are the active and inactive ingredients in Estrace?

Estrace, a prescription medication, contains the active ingredient estradiol, an estrogen hormone. According to the label [1], the inactive ingredients include:

* Lactose monohydrate
* Calcium carbonate
* Microcrystalline cellulose
* Starch, pregelatinized
* Stearic acid
* Hydroxypropyl methylcellulose
* Hydroxypropyl cellulose
* Titanium dioxide
* Polyethylene glycol

Why is estradiol the main active ingredient?

Estradiol is used in Estrace to relieve symptoms of menopause, such as hot flashes and vaginal dryness. It is a synthetic form of the primary estrogen produced by the ovaries in women [2]. By replenishing estrogen levels, estradiol can help alleviate menopausal symptoms.

What are some potential risks associated with the inactive ingredients?

While the inactive ingredients in Estrace are generally considered safe, they may cause allergic reactions or interact with other medications in rare cases. For example, lactose and calcium carbonate may cause gastrointestinal issues in individuals with specific dietary restrictions or sensitivities.

How has the formulation of Estrace changed over time?

The formulation of Estrace has remained relatively consistent over the years, with the addition of new inactive ingredients to enhance bioavailability or patient convenience. However, any changes to the formulation or labeling must be approved by regulatory authorities, such as the FDA [3].

Sources:

[1] Estrace Label (2023). drugpatentwatch.com

[2] FDA. Estradiol. National Institutes of Health. web.archive.org

[3] FDA. New Drug Application (NDA). fda.gov