My 2 cents here..........There are very few differences between human and animal steroids. The major difference is the attention to how "clean" it is. Winstrol, or stanozolol, is prescibed to humans the same as it is prescribed for animals, just in different circumstances. i know that not all steroids are used on both sides legitimately, but most have a human counterpart that is very similar, if not identical, to the animal AS.