High dose group:Ganmao Shuangjie Granules, 2 bags at a time, 3 times a day, take with boiling water in the morning, middle and evening

A multi-center, randomized, double-blind, dose-parallel, placebo-controlled phase II clinical trial to evaluate the effectiveness and safety of Ganmao Shuangjie Granules in the treatment of influenza (external cold, internal heat syndrome)

A multi-center, randomized, double-blind, dose-parallel, placebo-controlled phase II clinical trial to evaluate the effectiveness and safety of Ganmao Shuangjie Granules in the treatment of influenza (external cold, internal heat syndrome)