science

List of estrogens available in the United States

List of estrogens available in the United States is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand List of estrogens available in the United States rather than just read about it. In short: This is a complete list of estrogens and formulations that are approved by the FDATooltip Food and Drug Administration and available in the United States. Estrogens are used as hormonal contraceptives, in hormone replacement therapy, and in the treatment of gynecological disorders.

Key takeaways

List of estrogens available in the United States belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect List of estrogens available in the United States to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of List of estrogens available in the United States from memory before moving on to harder problems.

Reference excerpt

This is a complete list of estrogens and formulations that are approved by the FDATooltip Food and Drug Administration and available in the United States. Estrogens are used as hormonal contraceptives, in hormone replacement therapy, and in the treatment of gynecological disorders.

Estrogen-only

Oral/sublingual pills Conjugated estrogens (Premarin) – 0.3 mg, 0.45 mg, 0.625 mg, 0.9 mg, 1.25 mg, 2.5 mg Esterified estrogens (Amnestrogen, Estratab, Evex, Femogen, Menest) – 0.3 mg, 0.625 mg, 1.25 mg, 2.5 mg Estradiol (Estradiol, Gynodiol, Innofem) – 0.5 mg, 1 mg, 2 mg Estradiol acetate (Femtrace) – 0.45 mg, 0.9 mg, 1.8 mg Synthetic conjugated estrogens (Cenestin, Enjuvia) – 0.3 mg, 0.45 mg, 0.625 mg, 0.9 mg, 1.25 mg Atypical (dual estrogen and nitrogen mustard alkylating antineoplastic):

Estramustine phosphate sodium (Emcyt) – 140 mg Oral estradiol valerate (except in combination with dienogest as an oral contraceptive) is not available in the U.S. and is used primarily in Europe.

Transdermal forms

Patches Estradiol (Alora, Climara, Esclim, Estraderm, Estradiol, Fempatch, Menostar, Minivelle, Vivelle, Vivelle-Dot) – 14 μg/24 hours, 25 μg/24 hours, 37.5 μg/24 hours, 50 μg/24 hours, 60 μg/24 hours, 75 μg/24 hours, 100 μg/24 hours

Gels Estradiol (Divigel, Elestrin, Estrogel) – 0.06% (0.87 g/activation, 1.25 g/activation), 0.1% (0.25 g/packet, 0.5 g/packet, 1 g/packet)

Sprays Estradiol (Evamist) – 1.53 mg/spray

Emulsions Estradiol hemihydrate (Estrasorb) – 0.25%

Vaginal forms

Tablets Estradiol (Estradiol, Vagifem) – 10 μg (25 μg discontinued)

Creams Conjugated estrogens (Premarin) – 0.625 mg/g (0.0625%) Estradiol (Estrace) – 0.01% Synthetic conjugated estrogens (Synthetic Conjugated Estrogens A) – 0.625 mg/g (0.0625%)

Inserts Estradiol (Imvexxy) – 4 μg, 10 μg

Rings Estradiol (Estring) – 7.5 μg/24 hours Estradiol acetate (Femring) – 50 μg/24 hours, 100 μg/24 hours

Intramuscular injection Conjugated estrogens (Premarin) – 25 mg/vial Estradiol cypionate (Depo-Estradiol, Estradiol Cypionate) – 5 mg/mL (1 mg/mL and 3 mg/mL discontinued) Estradiol valerate (Delestrogen, Estradiol Valerate) – 10 mg/mL, 20 mg/mL, 40 mg/mL Polyestradiol phosphate (Estradurin) was previously available in the U.S. but was discontinued.

Combined with progestins

For contraception ⇾ See here instead.

For menopausal symptoms

Oral pills Conjugated estrogens and medroxyprogesterone acetate (Premphase (Premarin, Cycrin 14/14), Premphase 14/14, Prempro, Prempro (Premarin, Cycrin), Prempro/Premphase) – 0.3 mg / 1.5 mg; 0.45 mg / 1.5 mg; 0.625 mg / 2.5 mg; 0.625 mg / 5 mg Estradiol and drospirenone (Angeliq) – 0.5 mg / 0.25 mg; 1 mg / 0.5 mg Estradiol and norethisterone acetate (Activella, Amabelz) – 1 mg / 0.5 mg; 0.5 mg / 0.1 mg Ethinylestradiol and norethisterone acetate (FemHRT) – 25 μg / 0.5 mg Estradiol and progesterone (Bijuva) – 0.5 mg / 100 mg; 1 mg / 100 mg

Transdermal patches Estradiol and levonorgestrel (Climara Pro) – 45 μg/24 hours / 15 μg/24 hours Estradiol and norethisterone acetate (Combipatch) – 50 μg/24 hours / 0.14 mg/24 hours; 50 μg/24 hours / 0.25 mg/24 hours

Combined with other medications

Oral pills Conjugated estrogens and bazedoxifene acetate (Duavee) – 20 mg / 0.45 mg

See also List of sex-hormonal medications available in the United States List of estrogens List of estrogen esters Oral contraceptive formulations Estradiol-containing oral contraceptive

Notes

References "Drugs@FDA: FDA Approved Drug Products". United States Food and Drug Administration. Retrieved 16 November 2016. "DailyMed". National Institutes of Health: United States National Library of Medicine. Retrieved 12 October 2016.

External links For Women: Menopause—Medicines to Help You – U.S. Food and Drug Administration

Worked examples

Example 1 — a first encounter with List of estrogens available in the United States

Start with the simplest possible case. Write down what List of estrogens available in the United States claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to List of estrogens available in the United States before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about List of estrogens available in the United States ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of List of estrogens available in the United States

In research: List of estrogens available in the United States appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses List of estrogens available in the United States in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: List of estrogens available in the United States is common in secondary-school and first-year university syllabi. It links to neighbouring topics Estrogens, Hormonal contraception, so understanding it makes those chapters shorter.
In everyday life: Look for List of estrogens available in the United States outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study List of estrogens available in the United States in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what List of estrogens available in the United States means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain List of estrogens available in the United States out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is List of estrogens available in the United States in simple terms?

Why does List of estrogens available in the United States matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study List of estrogens available in the United States?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on List of estrogens available in the United States.