Ephedrine, Cortisol and Weightloss

I am considering adding eph caff combo 3 times daily for the final month of cutting. My question is in regards to the adrenals, cortisol levels and weight loss. I love coffee and caffeine and probably get 4 or 5 strong coffees a day, and I’m wondering will adding eph into the mix be a bad idea giving i may already be stressing my adrenals? also would it be as effective thermogenic given I’m already relatively tolerant to caffeine