Overview Effect of SQJZ Herbal Mixtures on Non-motor Symptoms of Parkinson's Disease Status: Recruiting Trial end date: 2022-12-01 Target enrollment: Participant gender: Summary The purpose of this study is to examine the efficacy and safety of SQJZ Herbal Mixtures on non-motor symptoms of PD patients. Phase: Phase 2 Details Lead Sponsor: Dongzhimen Hospital, Beijing