Ephedra for asthma

I used to use ephedra for my asthma, but can't find it anymore except in diet pills, which have too many extra ingredients, and in 8 mg tablets with 200 mg guafenesin. I tried those, but they don't work, and I can't take 3 of them to get close to the 25 mg I need, because 600 mg of guafenesin is too much. The 25 mg tablets online are outrageously expensive, like $80 a bottle. Does anyone know if there is a natural product that I can use that does not have all these extra ingredients? Tweet