A Study on the Improving Effect of Compound Danshen Dripping Pills on Diabetic Peripheral Neuropathy

INTERVENTION: Control group:Administer routine Western medicine treatment to the patient.;Treatment group:In the control group, mecobalamin tablets (Eisai (China) Pharmaceutical Co., Ltd.; National Medicine Standard H20143107) were administered at 0.5 mg three times a day, and beclopulsate sodium tablets (Chengdu Yuandong Biological Pharmaceutical Co., Ltd.; National Medicine Standard H20243696) at 40 µg per dose, three times a day. On this basis, Compound Danshen Dripping Pills (Tasly Pharmaceutical Group Co., Ltd.; National Medicine Standard Z10950111) were added, three times a day, 10 pills per dose.; CONDITION: Diabetes Mellitus?Diabetic Peripheral Neuropathy?Limb Numbness?Limb Weakness?Pain PRIMARY OUTCOME: Sensory Nerve Action Potential (SNAP) Amplitude of the Sural Nerve; INCLUSION CRITERIA: 1. Meet the diagnostic criteria of both Western medicine and Traditional Chinese Medicine (TCM), aged between 50 and 75 years, with a diabetes mellitus duration of 3 to 12 years. 2.Confirmed diagnosis of diabetic peripheral neuropathy for 3 to 8 years. 3.Voluntarily participate in the study and sign the informed consent form.