(4) SCHEDULE IV.--A substance in Schedule IV has a low potential for abuse relative to the substances in Schedule III and has a currently accepted medical use in treatment in the United States, and abuse of the substance may lead to limited physical or psychological dependence relative to the substances in Schedule III. Unless specifically excepted or unless listed in another schedule, any material, compound, mixture, or preparation which contains any quantity of the following substances, including its salts, isomers, and salts of isomers whenever the existence of such salts, isomers, and salts of isomers is possible within the specific chemical designation, are controlled in Schedule IV:
Stephan Bonnar and Josh Barnett , mixed martial arts (MMA) fighters from the UFC and PRIDE Fighting Championships , have also tested positive for the banned substance.  After the World Extreme Cagefighting show on January 20, 2006 Muay Thai turned MMA fighter Kit Cope also tested positive for boldenone.  Following the Strikeforce card on June 22, 2007 former PRIDE and UFC fighter Phil Baroni tested positive for boldenone, as well as stanozolol .  At a K-1 WGP event in Las Vegas on August 17, 2007 two fighters, Rickard Nordstrand and Zabit Samedov , both tested positive for boldenone.  Alexandre Franca Nogueira tested positive for boldenone in July 2008. 
Equipoise can produce androgenic side effects such as acne, accelerated hair loss in those predisposed to male pattern baldness and body hair growth. However, the overall androgenicity of this steroid is greatly reduced due to the structural nature that creates EQ in its double bond at the carbon one and two position. Such side effects of Equipoise are still possible, but they will be strongly linked to genetic predisposition, but most will find the threshold is fairly high.
When combating the possible androgenic side effects of Equipoise, it’s important to note they are brought on by the steroid being metabolized by the 5-alpha reductase enzyme. This metabolism will reduce Boldenone to an extremely potent androgen in dihydroboldenone, far more potent than dihydrotestosterone (DHT); however, the total dihydroboldenone activity has proven to be extremely low in human beings. You will further find the androgenic nature of Boldenone will not be significantly affected by 5-alpha reductase inhibitors like Finasteride that are often used to combat the reduction to DHT.
Due to the androgenic nature of Equipoise, women may potentially experience virilization symptoms. Virilization symptoms may include body hair growth, a deepening of the vocal chords and clitoral enlargement. However, the low androgenicity will make this steroid possible to use for some women without such symptoms. At the same time, the extremely slow acting nature of the compound can make it difficult to control regarding blood levels, and alternative steroids may be preferred. Without question, individual sensitivity will dictate a lot. If Equipoise is used and virilization symptoms begin to show, use should be discontinued immediately at their onset and they will fade away. If symptoms begin to show and are ignored, the symptoms may become irreversible.