I'm really struggling with shortness of breath and it's been about a week. I saw my doctor and tried the medicine they recommended, but it didnt help much. I went back, and they switched my medication. It's a bit better now, but still not quite right. Years ago, another doctor suggested a different medicineI think it was Etiofylline theofylline, but I dont remember exactly. Do you think I can try taking that medication now?