Wang Xianzhi Letter on Kidney System Vitality Pellets
A model writing by Wang Xizhi’s son Xianzhi (344-388).The letter reads:"After taking Kidney System Vitality Pellets.I feel much better.It is better than Huangqi root,which has had little effect.Only when one has taken nearly 1 0 doses does the effect become obvious…’’Huangqi is Radix Astragali seu Hedysari.