Steroids are hormones that occur naturally in the body. Steroid medicines are man-made and are similar to the natural hormones made in the body. Oral steroids are used to treat a large number of conditions, usually by reducing inflammation or the effect of the immune system. Some examples include: Fen https://search.grainger.illinois.edu/searchaidlog3/sourcelognew.asp?ID=782151&goog--https://tr.wikipedia.org/wiki/Vitamin