Overview To Evaluate the Efficacy and Safety of HSK16149 Capsule in Chinese Patients With Postherpetic Neuralgia Status: Recruiting Trial end date: 2022-12-07 Target enrollment: Participant gender: Summary Investigate the Efficacy and Safety of HSK16149 capsules in Chinese Postherpetic Neuralgia Following 12 Weeks Treatment in Comparison to Placebo Phase: Phase 3 Details Lead Sponsor: Haisco Pharmaceutical Group Co., Ltd.