it would defeat the purpose of the cycle bro..with ephedrine you lose fat but can lose quite a bit of muscle mass too...i would save it for after the bulk.
Just like cardio man.If you do too much you will start losing muscle too.If you are on a bulk why would you want to take it.The purpose of a bulk is to gain weight.If you are gaining to much fat back off the carbs,make sure your diet is in check and maybe pick up cardio a little