Alias broken old paper, old son, black hu paper. "Bone-supplementing fat evil licorice, avoid all blood" means that the Chinese medicine of bone-supplementing fat, should not be taken at the same time with licorice and animal blood. Bone-supplementing fat evil licorice, from the two medicinal properties of the main consideration. Bone-setting fat is pungent and warm, and mainly enters the kidney meridian. It can be used to treat five or seven injuries, and the lower part of the body is cold for a long time. All tonic kidney yin and yang of the classic formula, none of the licorice, add licorice is a snake to add feet, pulling the strings, the power is not concentrated. This is the reason for the "evil"! Not only do not use licorice in the formula for bone marrow, other kidney drugs are not with licorice. As for animal blood, it is high in iron and has a blood tonic effect. Although the ancient books have bone-setting "avoid all blood", but modern pharmacological research has not found that animal blood affects the efficacy of bone-setting medicinal properties.