Rehmanniae Glutinosae Praeparata (Shu Di Huang 熟地黄)
sweet, warm; affinity to Liv., Kid. meridians tonifies blood; nourishes Yin
Rehmanniae Glutinosae Radix Sheng Di Huang 生地黄
sweet, bitter, very cold; affinity to H., Liv., Kid. meridians It should be avoid in those with spleen and stomach deficiency (diarrhea or loose stool), dampness, yang deficiency