Make money. Nanjing Tongrentang is the only Chinese medicine enterprise in Nanjing that uses modern technology to produce traditional varieties of ancient prescriptions and comprehensive new dosage forms. It integrates science, industry and trade, and it is very profitable to join. Nanjing Tongrentang is located at the west foot of the scenic Yuhuatai Scenic Area, and its business scope includes tablets, hard capsules, granules, pills, oral liquids, lotions, powders and decoction.