The formula for reciting the Eighteen Contrasts: The Compendium of Materia Medica clearly states that eighteen opposites, half attack Wu, algae halberds against grass, and all participants are against Veratrum.

The recitation formula of nineteen fears: sulfur is the essence of fire, and you must argue with it when you see it. Mercury can't meet arsenic, and wolfsbane is most afraid of monks. Croton is the strongest and not suitable for Petunia. Clove can't be seen with turmeric, but tooth nitrate can't be seen with Beijing sparrow. Kusnezoff monkshood is not suitable for rhinoceros, and ginseng is most afraid of trogopterori. Guan Guishan can adjust the air conditioner, but he will bully others when he meets stone grease. Generally speaking, depending on harmony, guns do not depend on each other.

Eighteen evils and nineteen fears of traditional Chinese medicine are an attempt and summary of the performance of drugs by ancient Chinese doctors. The details are as follows:

Eighteen taboos

1, licorice: kansui, spurge, seaweed, Daphne genkwa;

2. Aconitum (Radix Aconiti, Radix Aconiti Lateralis, Radix Aconiti Kusnezoffii) Relative: Pinellia, Fructus Trichosanthis (whole Fructus Trichosanthis, Semen Trichosanthis), Fritillaria (Fritillaria Fritillariae Cirrhosae, Fritillaria thunbergii), Ampelopsis, and Bletilla striata;

3. Veratrum: Ginseng, Adenophora adenophora, Salvia miltiorrhiza, Scrophularia, Sophora flavescens, Asari and Radix Paeoniae Alba.

90-flavor compatibility taboo

1, sulfur form: mirabilite (including mirabilite and sodium sulfate);

2, mercury fear: arsenic;

3, the fear of wolf poison: monks;

4, croton (including croton paste) fear: morning glory (including black ugliness and white ugliness);

5, cloves (including female cloves) bogey: Yujin;

6. Radix Aconiti (including Radix Aconiti Lateralis) and Radix Aconiti Kusnezoffii: rhinoceros horn;

7. Mirabilite (including sodium sulfate) is afraid of: black trigonal;

8. Guan Guiwei: stone grease;

9, ginseng is afraid: Trogopterori.