Boldenone Undecylenate (Equipoise)

Boldenone (Equipoise) is an anabolic steroid. It is often formulated as the undecylenate ester.

Chemical Name

17β-hydroxyandrosta-1,4-dien-3-one (WHO)
Foreign Names

Boldenonum (Latin)
Boldenon (German)
Boldénone (French)
Boldenona (Spanish)

Generic Names

Boldenone (OS: BAN, DCIT)
δ1-Testosterone (IS)
Dehydrotestosterone (IS)
UNII-5H7I2IP58X (IS)
Boldenone Undecenoate

The activity of boldenone is mainly anabolic, with a low androgenic potency. Boldenone (Equipoise) will increase nitrogen retention, protein synthesis, increases appetite and stimulates the release of erythropoietin in the kidneys. Boldenone was synthesized in an attempt to create a long-acting injectable methandrostenolone (Dianabol), for androgen deficiency disorders. Boldenone acts similar to methandrostenolone with fewer adverse androgenic effects.[medical citation needed] Although commonly compared to nandrolone, boldenone lacks progesterone receptor interaction and all the associated progestogenic side effects.

Boldenone Undecylenate (Equipoise) is a testosterone derived anabolic androgenic steroid that is best known by the trade name Equipoise given to it by Squibb in the 1970’s. While Equipoise is officially classified as a veterinarian grade anabolic steroid, the first batches of Boldenone were introduced on the human grade pharmaceutical market by Ciba in the early 1950’s under the brand name Parenabol. Human grade Boldenone would see some success in human medicine through the 1960’s and 70’s but would ultimately be discontinued by the end of the decade. Since that time, the steroid has only been available through veterinarian medicine and underground labs with the Equipoise name dominating the market. Fort Dodge Animal Health now owns the Equipoise name.

Test 600x For decades, it has been assumed that Equipoise was very similar to Deca Durabolin (Nandrolone Decanoate). This assumption was in part based on comments the late Dan Duchaine made about the steroid. However, the two compounds are not similar in any way; in fact, Duchaine would recant the statement, but the initial statement has been enough to keep the rumor alive. If Equipoise shares anything in common with another anabolic steroidal hormone, it would be testosterone, but EQ as it’s commonly known is unique in its own right. An important note regarding the differences in these two steroidal hormones; Nandrolone carries a strong progestin nature, while Boldenone carries no progestin characteristics.

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