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Table 1 Relative potencies of main corticosteroids (modified from [1])

From: Deflazacort: therapeutic index, relative potency and equivalent doses versus other corticosteroids

Corticosteroid Anti-inflammatory potency Na+ retaining potency
Cortisol 1 1
Cortisone 0.8 0.8
Fludrocortisone 10 125
Prednisone 4 0.8
Prednisolone 4 0.8
6a-methylprednisolone 5 0.5
Triamcinolone 5 0
Betamethasone 25 0
Dexamethasone 25 0
  1. The numbers in the Table indicate corticosteroid anti-inflammatory and Na+ retaining potency relative to cortisol (by convention, cortisol = 1), and have been calculated by the Author on the basis of currently available literature data