As anti-catabolic?
Let's see....
- on cycle...no need for its anti-catabolic effect, because steroids do it already;
- postcycle...the most important reason to go off is to recover your natural testosteron production, at least, for most people, and Cytadren does inhibit not only production of cortisol, progesteron, but also androgens, so it's counterproductive;
Besides, in doses that do supress cortisol production, feedback mechanism kicks in after about 3 weeks, and your body starts overproducing cortisol despite presence of Cytadren, you will experience terrible rebound effect.