How to Slowly and Safely Taper Off Prednisone but ... no set rules.

The following link addresses prednisone withdrawal symptoms and adrenal insufficiency. There is a nice video that explains how prednisone replaces our natural cortisol -- a hormone that our adrenals produce.
https://www.verywellhealth.com/does-prednisone-tapering-minimize-withdrawal-190242
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The following is a more in depth discussion about the role of cortisol in the body. Credit goes to Australia for the following information.
https://www.healthdirect.gov.au/the-role-of-cortisol-in-the-body#:~:text=Key%20facts,much%20or%20too%20little%20cortisol.