I have addisons disease. they want me on prednisone of hydrocortisone. which one has less negative side effects? thanks

Either should be OK: If the dose is adjusted properly, either hydrocortisone or prednisone can be used for Addison's disease, keeping in mind that prednisone is about 5 times as potent. Prednisone has the advantage of a longer half life so twice a day works well. For hydrocortisone, some people need to take it 3 times a day to avoid having symptoms of fatigue for part of the day.