Users on an oral steroid cycle may experience a sudden increase in body weight and muscular development, insomnia, irritability, aggressive combative behavior, puffy face, severe acne, bad breath, a yellowing of the eyes and skin, premature hair loss, hyperactivity, and exaggerated mood swings that include uncontrollable outbursts of anger. Males may also experience testicular shrinkage and can develop female breast tissue on the pectoral muscles. Females may also experience a deeper voice and decreased breast size. Continued use can result in life-threatening situations involving the liver, cardiovascular system, and brain.
Because the ultimate goal of a steroid cycle is to increase strength and muscle size, the associated spike in estrogen which accompanies steroids such as Testosterone is considered undesirable. In order to disassociate the two effects, two classes of drug are used. Medications such as Nolvadex or Clomid target the estrogen receptors. They make it more difficult for the estrogen to exert it’s influence within the body thus allowing the testosterone to act more freely. The second class is aromatase inhibitors such as Femara. They target the aromatase enzyme itself in order to prevent the production of estrogen in the first place. Sometimes, it’s not always clear which option you should go with or even what the differences are between the two. Lets clear that up a little.