Fructus Crotonis

 

Source
The fruit of Croton tiglium L., family Euphorbiaceae.

Characteristics
Fruit ovate, trigonous, 1.8-2.2 cm long. Carpodermis grey-yellow, slightly coarse, with six longitudinal lines; apex truncate, base with carpopodiurn or its scar; 3 celled, each cell containing an elliptical and grey-brown seed. Acrid in taste, heat in nature, strongly toxic, and attributive to stomach, large intestine and lung channels.

Indication
1. Relax the bowels: For sthenia-syndrome with constipation due to accumulation of cold, dysentery of cold type. Recently, also used for biliary ascariasis, biliary infection and cholelithiasis with abdominal pain; for adhesive ascarial and paralytic ileus; for appendicitis, used together with same dose of pills of Radix et Rhizoma Rhei and Rhizoma Coptidis, or mixed with same dose of Cinnabans, applying on point Lanwei.
2. Eliminate fluid and relieve edema: For sthenia-syndrome with edema and ascites.
3. Eliminate phlegm; Powder insufflation for pharyngitis and diphtheria; for malaria, applying crushed product on Neiguan and Dazhui 2 hours before the episode; also used for dyspnea due to the retention of phlegm.
4. Drain the pus and relieve swelling: External use for various kinds of severe skin lesions; oral use of Crotonis fried in yellow wax for bone tuberculosis and osteomyclitis.

Pharmacological Action
1. Locally acting as an irritant for skin and mucosa; orally as a potent purgative.
2. Its solution may kill the oncomelania.
3. Its leaf infusion from NaCl solution inhibits the growth of Bacillus coli.

Administration
Tablet or capsule: 0.10-0.15g once or twice daily, the daily dose should be limited within 0.45g. External use: Small amount in a short period.

Caution
This medicine is a strong irritant when used externally and may cause burning pain and vesculation of the skin. Oral use may cause burning sensation and pain of the digestive tract, vomiting and diarrhea, which can be relieved by intake of cold porridge, cold water or cold Coptidis solution. Contraindicated for pregnant women and persons with general debility.


   

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Mr. Wang Tao

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