Multicenter, Open, Prospective, 48 Weeks, Observational Study ,Evaluate the Safety and Efficacy of Nephoxil Capsule

The initial dose of Nephoxil capsules for the subjects participating in this study shall be determined at the investigator's discretion, and subjects shall be classified into either the low-dose group (1.5 g/day) or the standard-dose group (4 g/day) according to the initial dose. It will be conducted with 13 visits over 48 weeks.