25 mg may suffice, while in severe diseases doses higher than 300 mg may be required. The initial dosage should be maintained or adjusted until the patient’s response is satisfactory. If satisfactory clinical response does not occur after a reasonable period of time, discontinue Cortisone Acetate tablets and transfer the patient to other therapy.
The most commonly used AAS in medicine are testosterone and its various esters (but most commonly testosterone undecanoate , testosterone enanthate , testosterone cypionate , and testosterone propionate ),  nandrolone esters (most commonly nandrolone decanoate and nandrolone phenylpropionate ), stanozolol , and metandienone (methandrostenolone).  Others also available and used commonly but to a lesser extent include methyltestosterone , oxandrolone , mesterolone , and oxymetholone , as well as drostanolone propionate , metenolone (methylandrostenolone), and fluoxymesterone .  Dihydrotestosterone (DHT; androstanolone, stanolone) and its esters are also notable, although they are not widely used in medicine.  Boldenone undecylenate and trenbolone acetate are used in veterinary medicine . 
There is no scientifically proven limit for cortisone injections, however as a general rule, three injections into the same body part are permitted over a twelve month period. Injections more frequent than this are felt to place the injected tissue at risk of softening/weakening, which may be an issue in a joint for example, as this may accelerate arthritis. Also, if you have failed to respond to a series of three injections, then it is probably time your condition was reassessed to find out if the diagnosis correct. Has your condition worsened and are other forms of treatment, such as surgery, more appropriate?