Anabolic steroids are a group of medicines that have far reaching effects on horse metabolism and can have both positive and adverse behavioral effects. This group includes the equine products Equipoise and Vebonol (boldenone), Winstrol-V (stanozolol), and the human drug nandrolone. Uses that are well recognized include:

• to improve appetite
• promote weight gain
• increase strength and vitality
• improve anemia

Less well established is its possible use as a fibrinolytic drug, making it potentially useful in preventing adhesions and treat thrombosis. This article is about the uses, contraindications, toxic effects, behavioral effects, dosages, and association drug rules that apply to this medication.

Anabolic steroids are primarily used as adjunctive therapy for the treatment of debilitated horses. They improve appetite and weight gain.