Efficacy and Safety of Glucocorticosteroid Treatment in the Patients With Chronic Recurrent DILI

Participants will receive methylprednisolone,48mg/d for the 1st week,32mg/d for the 2nd week,24mg/d for the next two weeks, followed by 16mg/d for 32 weeks and reduction in doses of methylprednisolone by 4 mg per 4 weeks until drug withdrawal.Participants will also receive standard treatment including reduced glutathione, glycyrrhizin, ademetionine, alprostadil, or ursodeoxycholic acid (UDCA) in the first 12 weeks.The total treatment duration will be 48 weeks. Follow-up duration is 24 weeks.

Participants will only receive standard treatment,namely,routine liver protection drugs including reduced glutathione, glycyrrhizin, ademetionine, alprostadil,or ursodeoxycholic acid (UDCA) from week 0 through week 12 study visit. Participants will then be followed until week 72.