Hey I went from 20 mg to about 3.75 and then had a big crash. Literally couldn't move. My body just wasn't ready at the time b/c my adrenals were still in such a bad state and my hormone levels were so low. Right now I'm on about 8.75 and I find it to be the minimum to allow my body to function at a baseline level where I can use other supplements to help my adrenals.
I went down by 1.25 mg every week in the beginning. After about 10 mg you should go down by about 10 percent each week. I'm going to give the weaning off a try again once I feel ready.
What "other unexplained symptoms" made you go on the Cortef in the first place?