Winstrol is a very popular oral or injectable anabolic-androgenic steroid. It ranks up there with deca and dianabol as the most widely used and abused drug by competitive athletes. Stanozolol is commonly refered to as winny (winstrol). Winstrol comes in two forms as mentioned above - both oral and injectable. The injections are the same methylated compound as the oral form of the drug. However, due to this feature, it cannot be esterified for time release. Winstrol has a short active life of around 8 hours. Winstrol counteracts estrogenic side effects such as gyno and water retention - another quality which makes it attractive to the athlete seeking lean mass gains.