Materia Medica - Important
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Pharmaceutical Name
 Herba portulacae
Botanical Name
 Portulaca oleracea L.
Common Name
 Purslane, Portulaca
Source of Earliest Record
 Xinxiu Bencao
Part Used & Method for Pharmaceutical Preparations
 The entire plant is gathered in summer, steamed or boiled and then dried in the sun.
Properties & Taste
 Sour and cold
Meridians
 Large intestine and liver
Functions
 1. To clear heat and release toxins; 2. To cool the blood and stop dysentery
Indications & Combinations
 Dysentery manifested as fever, abdominal pain, blood and pus in the stool and tenesmus. Portulaca (Machixian) is used with Scutellaria root (Huangqin) and Coptis root (Huanglian). Also, Portulaca (Machixian) can be taken alone as treatment for these symptoms.
Dosage
 30-60 g (double dosage for the fresh herb)
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