1723年（清雍正元年），，，，，同仁堂最先为清宫供御药，，，，，历经雍正、乾隆、嘉庆、道光、咸丰、同治、光绪、宣统八代天子，，，，，长达188年。。 。。。In 1723, the 1st Qing Yongzheng reign, Tongrentang initiated its medication supply to the Qing Imperial Palace, over the eight reigns , for 188 years.
