Can dosage of predisone go from 50mg to 25 mg to .5mg in 3 days? Currently on a maintenance dose of predisone of .5 to 1 mg day. With hip replacement surgery the dose will be 50mg on day of surgery then 25mg the day after and then back to maintenance dose (.5mg) on day 3. Does it require a longer time for the step down to occur, For example 50 - 25 -20-15-10-5mg to ease back to normal maintenance dose?