Description Winstrol (the active ingredient is stanozolol) is an anabolic steroid available in tablet and injectable solution form (winstrol depot). Winstrol was developed in 1962 by Winthrop Laboratories.Active ingredient: stanozolol.Form: 1 ml in a vial of 50 mg/mlManufacturer.Country.It is a synthetic steroid derived from testosterone approved by the FDA for use in humans (stanozolol was originally developed for use in […]