Cautions heat syndrome

Zhi Gan Cao, as in the other conditions of internal heat syndrome, can be used in the formula to harmonize and moderate the functions of herbs and to protect the Stomach. However, in a damp-heat syndrome of the Lower-Jiao, Zhi Gan Cao - which has a tendency to retain dampness because of its sweet nature - should be used with caution. 

A side effect of Xi Xin occurs when it is applied incorrectly. Because it is very hot and pungent, it can easily injure the Yin, blood, body fluid and Qi. It should not be used, or must be used with caution, in patients who suffer from exterior wind-cold syndrome where internal heat also coexists and the Yin, blood and body fluids are deficient. The dosage of Xi Xin should also be controlled carefully in the range of 1-3 g per day for crude herbs. If the powdered herbal extract is used, the dosage should be reduced to 0.1 -0.5 g per day. Overdose may cause numbness in the throat and tongue, a stifling... 

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