I am COPD level 4. I am on maximum doses of several medications, all by top doctor. I stay in my chair for days at a time due to breathing. I have nebuliser as well. Never been into drugs but used cocaine powder hoping it would give me an energy boost to go out. It worked wonders and my breathing was a lot better for a while. I know it works but even though I’m terminal I’d prefer something prescribed by my M.D. Is there such a thing