This product is the root of Dichroa (Dichroa febrifuga L.), a deciduous shrub of the saxifraga family. Mainly produced in the provinces south of the Yangtze River and Gansu, Shaanxi, Sichuan and other places. Harvested in autumn. Dry. Slice and use raw or stir-fry with wine.

[Property]

bitter and acrid, cold. toxic. act on lung, heart and liver channels.

[Efficacy]

Spitting and spitting, preventing attack of malaria.

[Indications]

1. For extreme drinking in the chest. Dichroa is used raw. It has a good nature and is good for vomiting. Add Qianjin Fang. Use Dichroa with Liquorice Root, decocted with water and honey and take it warmly to vomit saliva and accumulated drinking in the chest. . However, this washing method is rarely used nowadays.
2. for malaria. This product can dispelling phlegm preventing attack of malaria. Suitable for all kinds of malaria, especially effective in treating tertian malaria and quartan malaria. Often used synonymously with Caoguo, Magnolia Bark, Areca Seed, such as Malaria-Truncating Seven-Treasure Decoction. Because this product has a side effect of causing vomiting, it should be stir-fried with wine and combined with medicinals Dried Tangerine Peel, Pineilia, etc. to reduce gastrointestinal reactions.

[Documentation]

1. Benjing: "The main disease caused by cold Hanre, then warm malaria... knot in chest, vomiting."
2. Yaoxing Lun: "Cure all kinds of malaria, vomiting and irritation." After the Yang is divided, if it is used properly, the magical effect will be seen immediately. If it is used improperly, the guest's qi will be injured. Dichroa, Dichroa Twig and Leaf, if used raw, the upward movement will cause vomiting; if steamed and stir-fried with wine, the qi will be slightly slower, and if used sparingly, it will not cause vomiting. ”

[Usage and Dosage]

Decoct and take, 4.5~9g; reduce into pills and powder. It can be used raw when vomiting, but it can be used in the form of wine to prevent attack of malaria. Treatment of malaria should be taken half a day or 2 hours before Hanre attacks.

Because it can induce vomiting, the dosage should not be too large, and it should not be used by those who are physically weak and pregnant women.

[Modern Pharmacology]

This product mainly contains Dichroa bases A, B, and C, and secondly it also contains Dichroa secondary bases and umbeliferol. The alkaloids contained in Dichroa have strong inhibitory effects on Plasmodium. Among them: Dichroa base C has the strongest antimalarial effect, about 100 times that of quinine, followed by Dichroa base B, which is about 50 times that of quinine: Dichroa base A is the weakest, roughly equal to quinine. Dichroa base B has anti-amoebic and emetic effects, and its emetic effect is mainly caused reflexively by stimulating the vagus and sympathetic nerve endings of the gastrointestinal tract. Dichroa decoction has an antipyretic effect on rabbits with artificial fever. Dichroa's base has antihypertensive effects. Dichroa water extract has magical effects on influenza viruses. Dichroa base B has obvious poisoning effect on Ehrlich abdominal retention of water cancer cells. Dichroa's base is toxic, and the main symptoms of poisoning are nausea, vomiting, diarrhea, and gastrointestinal mucosal membrane congestion and bleeding.

Dichroa Twig and Leaf: This product is the dried twigs and leaves of Dichroa (Dichroa febrifuga Lour.), a plant of the saxifraga family. It tastes slightly bitter and can remove phlegm, prevent attack of malaria and eliminate abdominal mass.