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Syntex. Laboratorios Syntex SA (later Syntex Laboratories, Inc.) was a pharmaceutical company formed in Mexico City in January 1944 by Russell Marker, Emeric Somlo, and Federico Lehmann to manufacture therapeutic steroids from the Mexican yams called cabeza de negro ( Dioscorea mexicana) and Barbasco ( Dioscorea composita ). [1]
Metandienone, also known as 17α-methyl-δ 1-testosterone or as 17α-methylandrost-1,4-dien-17β-ol-3-one, is a synthetic androstane steroid and a 17α-alkylated derivative of testosterone. It is a modification of testosterone with a methyl group at the C17α position and an additional double bond between the C1 and C2 positions. [7]
Anabolic steroids, also known as anabolic-androgenic steroids (AAS), are a class of drugs that are structurally related to testosterone, the main male sex hormone, and produce effects by binding to the androgen receptor (AR). Anabolic steroids have a number of medical uses, [1] but are also used by athletes to increase muscle size, strength ...
Oxandrolone is an androgen and synthetic anabolic steroid (AAS) medication to help promote weight gain in various situations, to help offset protein catabolism caused by long-term corticosteroid therapy, to support recovery from severe burns, to treat bone pain associated with osteoporosis, to aid in the development of girls with Turner syndrome, and for other indications.
Mesterolone. Mesterolone, sold under the brand name Proviron among others, is an androgen and anabolic steroid (AAS) medication which is used mainly in the treatment of low testosterone levels. [2] [3] It has also been used to treat male infertility, although this use is controversial. [2] [4] [5] It is taken by mouth.
The medication is a naturally occurring androgen and anabolic steroid and hence is an agonist of the androgen receptor (AR), the biological target of androgens like testosterone and DHT. [2] [6] Androstanolone was discovered in 1935 and was introduced for medical use in 1953. [2] [7] [8] [9] It is used mostly in France and Belgium.
Testosterone (medication) Testosterone ( T) is a medication and naturally occurring steroid hormone. [8] It is used to treat male hypogonadism, gender dysphoria, and certain types of breast cancer. [8] [9] It may also be used to increase athletic ability in the form of doping. [8]
Use of anabolic steroids for purposes other than treating medical conditions is controversial and, in some cases, illegal. Major sports organizations have moved to ban the use of anabolic steroids. There is a wide range of health concerns for users. Legislation in many countries restricts and criminalizes AAS possession and trade.