Winstrol (stanozolol) is a potent anabolic, but also binds to the progesterone receptor and to LAGS in the liver. In muscle tissue, Winstrol has been found to stimulate immediate-early gene expression by a means independent of the androgen receptor.
Stanozolol can stimulate the production of prostaglandin E2 and the matrix metalloproteases collegenase and stromelysin in skin fibroblasts. It has been found to inhibit growth factor stimulated DNA synthesis and fibroblasts. Winstrol has substantial fibrinolytic properties, and has been effective in the treatment of urticaria, Raynaud’s phenomenon, cryptofibrinogenemia, and lipodermatosclerosis. Stanozolol has also effected cures of osteonecrosis in cases resistant to all other therapy. Stanozolol has been used successfully in treatment of AIDS wasting syndrome.
Winstrol is also useful in treatment of hereditary angioedema. It is somewhat hepatotoxic, but less so than many other oral anabolic steroids. It influences some immunological processes. Stanozolol has been found to increase lymphocyte count and CD8+ cell numbers, but to decrease CD4+ and CD3+ in postmenopausal women using it for osteoporosis. This effect would plausibly be useful for treatment of autoimmune disorders.