I was beginning to think I was destined to a short life as my breathing issues were getting worse and worse and stronger meds! My incredible immunologist said let’s do some genetic testing. He got ever test available as well and my genetic tests showed a gene mutation that affects carnatene levels and he started me a a carnatene supplement lowest level first and omg not kidding within a day I was breathing again and began the slow weaning off all of the steroids and albuterol and bonus no more constapation. I was troubled with that my whole life! In Buffalo ny, Dr Julian Ambrose, Jr. He is known as the Dr that can solve anything as he is not afraid of insurance companies only focuses on getting people that haven’t been able to get better better!! Hope this helps he also added L-acetlecyusyne spelled wrong .