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List of androgens and anabolic steroids

List of androgens and anabolic steroids 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 androgens and anabolic steroids rather than just read about it. In short: This is a list of androgens/anabolic steroids (AAS) or testosterone derivatives. Androgen esters are mostly not included in this list.

List of androgens and anabolic steroids — main illustration
List of androgens and anabolic steroids — illustration

Key takeaways

  • List of androgens and anabolic steroids 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 androgens and anabolic steroids to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of List of androgens and anabolic steroids from memory before moving on to harder problems.

Reference excerpt

This is a list of androgens/anabolic steroids (AAS) or testosterone derivatives. Androgen esters are mostly not included in this list. The major classes of testosterone derivatives include the following (as well as combinations thereof):

Testosterone derivatives: direct derivatives of testosterone not falling into the groups below 4,5α-Reduced/dihydrogenated testosterone derivatives: dihydrotestosterone (DHT) derivatives 19-Demethylated testosterone derivatives: 19-nortestosterone (nandrolone) derivatives 17α-Alkylated testosterone derivatives: methyltestosterone and ethyltestosterone derivatives 17α-Ethynylated/vinylated testosterone derivatives: ethynyltestosterone (ethisterone) and vinyltestosterone derivatives The last group consists of progestins with mostly only very weak androgenic/anabolic activity. AAS that are listed as marketed may be marketed as one or more esters rather than as the listed AAS itself. This article pertains to steroidal androgens; nonsteroidal androgens like the selective androgen receptor modulators (SARMs) andarine and enobosarm (ostarine) are not included here.

Natural/endogenous Marketed Androstenediol (A5; 5-androstenediol) Boldenone (δ1-T)* Dehydroepiandrosterone (DHEA; prasterone, 5-androstenolone) Dihydrotestosterone (DHT; androstanolone, stanolone) Nandrolone (19-NT; 19-nortestosterone)* Testosterone (T; 4-androstenolone) Never marketed 11-Ketodihydrotestosterone (11-KDHT) 11-Ketotestosterone (11-KT) 11β-Hydroxyandrostenedione (11β-OHA4) 19-Nor-5-androstenediol (19-NA5)* Adrenosterone (11-ketoandrostenedione; 11-KA4) Androstenedione (A4; 4-androstenedione) Androsterone Bolandione (19-nor-4-androstenedione)* Dehydroandrosterone (DHA; 5-dehydroandrosterone) Epiandrosterone * Only present endogenously in trace/very small amounts or present in other species.

Testosterone derivatives

Non-17α-Alkylated

17α-Alkylated

17α-alkenyl and -alkynyl

17α-Ethynylated testosterone derivatives are potent progestins with only very weak androgenic/anabolic activity and are used as oral contraceptives or for the treatment of gynecological conditions in women. They are invariably classified as progestins rather than as AAS. However, these progestins are testosterone derivatives and do have significant androgenic/anabolic activity, sometimes producing acne and other mild androgenic effects in women. Conversely, in men, these drugs may actually have functional antiandrogen effects due to their potent progestogenic and hence antigonadotropic activity and capacity to suppress gonadal testosterone production.

Dihydrotestosterone derivatives

Non-17α-Alkylated

17α-Alkylated

19-Nortestosterone (nandrolone) derivatives

Non-17α-alkylated

17α-Alkylated

17α-alkenyl and -alkynyl

The 17α-ethenylated (vinylated) testosterone derivative norvinisterone (vinylnortestosterone) is much more potent as an AAS than the 17α-ethynylated testosterone derivatives and is intermediate in potency between the 17α-ethynylated progestins and conventional AAS, with approximately one-third and one-fifth of the respective androgenic and anabolic activity of nandrolone in animal bioassays. Vinyltestosterone has been described as a weak AAS, though stronger than its 17α-ethynylated analogue ethisterone.

See also List of steroids List of designer drugs § Androgens List of androgens/anabolic steroids available in the United States

Notes ? = Chemical names that are unverified.

References

Further reading Kicman, A T (2008). "Pharmacology of anabolic steroids". British Journal of Pharmacology. 154 (3): 502–521. doi:10.1038/bjp.2008.165. ISSN 0007-1188. PMC 2439524. PMID 18500378. Fragkaki AG, Angelis YS, Koupparis M, Tsantili-Kakoulidou A, Kokotos G, Georgakopoulos C (2009). "Structural characteristics of anabolic androgenic steroids contributing to binding to the androgen receptor and to their anabolic and androgenic activities. Applied modifications in the steroidal structure". Steroids. 74 (2): 172–97. doi:10.1016/j.steroids.2008.10.016. PMID 19028512. S2CID 41356223. McRobb L, Handelsman DJ, Kazlauskas R, Wilkinson S, McLeod MD, Heather AK (2008). "Structure-activity relationships of synthetic progestins in a yeast-based in vitro androgen bioassay". J. Steroid Biochem. Mol. Biol. 110 (1–2): 39–47. doi:10.1016/j.jsbmb.2007.10.008. PMID 18395441. S2CID 5612000.

Illustrations

List of androgens and anabolic steroids: Testosterone.
Testosterone.
List of androgens and anabolic steroids: Steroid ring system.
Steroid ring system.
List of androgens and anabolic steroids illustration
List of androgens and anabolic steroids illustration
List of androgens and anabolic steroids illustration

Worked examples

Example 1 — a first encounter with List of androgens and anabolic steroids

Start with the simplest possible case. Write down what List of androgens and anabolic steroids 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 androgens and anabolic steroids 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 androgens and anabolic steroids 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 androgens and anabolic steroids

In research
List of androgens and anabolic steroids 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 androgens and anabolic steroids 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 androgens and anabolic steroids is common in secondary-school and first-year university syllabi. It links to neighbouring topics Androgens, Lists of drugs, so understanding it makes those chapters shorter.
In everyday life
Look for List of androgens and anabolic steroids 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 androgens and anabolic steroids in 20 minutes

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

Frequently asked questions

What is List of androgens and anabolic steroids in simple terms?

This is a list of androgens/anabolic steroids (AAS) or testosterone derivatives. Androgen esters are mostly not included in this list.

Why does List of androgens and anabolic steroids 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 androgens and anabolic steroids?

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 androgens and anabolic steroids.

Tags

  • Androgens
  • Lists of drugs

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