Clinical and Experimental Study on the "Dose-Effect-Form" Relationship of Different Formulations of "Sanshen Liansong Decoction" in the Treatment of Benign Arrhythmia

INTERVENTION: Usual care group:Conventional medical treatment in Western medicine;Decoction Group:Sanshen Liansong Decoction;Granules Group:Sanshen Liansong Granules;Low‐dose granules group:0.7 times the dose of Sanshen Liansong granules; CONDITION: Arrhythmia PRIMARY OUTCOME: Minnesota living with heart failure questionnaire;24‐hour premature beat count; SECONDARY OUTCOME: Improvement of palpitations and chest tightness;TCM Syndrome Points;ECG rhythms;Composite endpoint events; INCLUSION CRITERIA: 1. Age = 18 years and = 80 years gender not limited.; 2. Holter monitoring indicating premature beats with the diagnosis of premature beats meeting both Western and traditional Chinese medicine diagnostic criteria; 3. Willingness to undergo 12 weeks of medication treatment including but not limited to standardized drug therapy such as ß‐blockers (unless contraindicated or intolerant the optimal treatment dose should be achieved); 4.Voluntary participation with understanding and signing of the informed consent form.