It is unusual for a person to be taking oral prednisone for chronic obstructive pulmonary disease (COPD), especially in a
dose as high as 20 mg daily. That
dose puts you at risk for a lot of steroid side effects, such as muscle weakness, bone thinning, cataracts, fragile skin, hypertension etc. You should ask your doctor why you need 20 mg of prednisone. You may also want to consult with a lung specialist about this and other inhaled medicines available to people with COPD.