Another common concern among individuals who receive testosterone and other steroids from their physicians is the lack of necessary steroid supplements such as aromatase inhibitors. At low maintenance doses, testosterone usually does not require the inclusion of an AI, so your doctor probably will not prescribe one. Here is where you will need to get a little crafty; you should never use testosterone or any other steroid that converts to estrogen without an AI. You may need to return to the doctor and report your symptoms to obtain something like Arimidex, although at this point, you run the risk of having your doctor stop your steroid treatment altogether. Otherwise, you can usually find Arimidex online.