Confidence votes 5. Prefix: im-. 1  Not (il- is used before an l, im- before a b, m or p, ir- before an r) - in-, il-, ir-, un-.  In, into, towards, within (il- is used before an l, im- before a b, m or p, ir- before an r) - in-, il-, ir-.
Anabolic steroids are synthetic substances similar to the male hormone testosterone. Doctors prescribe them to treat problems such as delayed puberty and other medical problems that cause the body to make very low amounts of testosterone.Steroids make muscles bigger and bones stronger.ome people take legal dietary supplements that have certain steroid hormones also made by the human body. One such supplement is dehydroepiandrosterone (DHEA). The body can turn DHEA into other steroid hormones, including testosterone, estrogen, and cortisol. People use it to try to make their muscles bigger.
Examples of hormones are corticosteroids (from the adrenal cortex), growth hormone (from the pituitary gland) and androgens (from the testes). Please refer to the drug classes listed below for further information. 1  5-alpha-reductase inhibitors. 2  adrenal cortical steroids.