OTC headache pill

Zheng Tian Wan A TCM patent remedy for Headacheby Adam Tate, 2019 Zheng Tian Wan is a TCM patent medicine for Headache. It is an OTC (over-the-counter) medicine available from various manufacturers as a general first-line remedy for Headaches and Migraine. Some patent medicines develop a reputation for being effective for a particular disease without…