Does anyone know how often you can use the prednisone 6 day pack? I got off enbrel for 3-1/2 weeks (have been on enbrel 1-1/2 years)and my RA symptoms kicked back in big time. I took a lighter version of the 6 day pack (12mg first day,etc.(41 mg total) to slow down the RA symptoms. I have two more 50mg enbrel shots to take before vacation. Thought I could use the prednisone 6 day pack again if I ran into problems but I am concerned about slowing down my adrenal glands. I had two 40mg cortisone shots in Nov and Dec and they seemed to really slow down my adrenal glands (stressed and can't lose weight). My pharmacist said the enbrel stays in your system for 41 days.