Zihua Wenfei granule

Zihua Wenfei granule is a Traditional Chinese Medicine (TCM) herbal formulation developed by the Guangdong Province Traditional Chinese Medical Hospital for the treatment of post-infectious cough (PIC). It is specifically indicated for patients presenting with the TCM syndrome of cold-phlegm obstructing the lung, which typically manifests as a persistent cough following an acute respiratory tract infection. The formulation is composed of several botanical extracts, including *Peucedanum decursivum* (Zihua Qianhu), *Aster tataricus* (Ziwan), and *Tussilago farfara* (Kuandonghua), which are traditionally used to ventilate the lungs, dispel cold, and resolve phlegm. Clinical studies, including Phase 2 and Phase 3 trials in China, have evaluated its efficacy in reducing cough frequency and severity by modulating airway inflammation and reducing cough reflex sensitivity.

Brand names

Zihua Wenfei granule

Other names

Zihua Wenfei Keli紫花温肺颗粒