English name SPICA PRUNELLAE
Alias cudgel grass, iron grass, big head flower and summer withered head.
Source this product is the dried ear of Prunella vulgaris L., a labiatae plant. In summer, when the ear is brownish red, harvest, remove impurities and dry in the sun.
Properties This product is rod-shaped, slightly flat, with a length of1.5 ~ 8 cm and a diameter of 0.8 ~1.5 cm.
Light brown to reddish brown. The whole panicle consists of several rounds of persistent calyx and bracts, each round has 2 opposite bracts, which are fan-shaped, with a pointed tail at the apex, obvious veins and white hairs on the outer surface. There are 3 flowers in each bract, most of the corollas have fallen off, the calyx is 2-lipped, and there are 4 nutlets in it, which are oval and brown, with white protrusions at the tip. Lightweight. Slight breath, light taste.
differentiate
(1) Take this product powder 1g, add ethanol 15ml, heat and reflux 1 hr, and filter. Take filtrate 1ml.
Put it in an evaporating dish, evaporate it to dryness, add acetic anhydride 1 drop to the residue to dissolve it, and then add a small amount of sulfuric acid, which turns purple and then dark green.
(2) Spot the filtrate under [Identification ]( 1) on the filter paper, and spray the mixed solution of 0.9% ferric chloride solution and 0.6% potassium ferricyanide solution with equal volume, that is, show blue spots.
(3) Take this product powder 1g, add 20ml of ethanol, heat and reflux 1 h, filter, evaporate the filtrate, soak it in petroleum ether (30 ~ 60℃) twice, each time 15ml (about 2 minutes), pour off the petroleum ether solution, and add ethanol/kloc to the residue. Taking ursolic acid as reference substance, adding ethanol to make a solution containing 1mg per 1ml as reference substance solution. According to the test of thin-layer chromatography (Appendix ⅵ b), absorb 2μl of each of the above two solutions, respectively spot them on the same silica gel G thin-layer plate, use cyclohexane-chloroform-ethyl acetate-glacial acetic acid (20:5:8:0.5) as the developing agent, unfold them, take them out, dry them in the air, and spray them with10% sulfuric acid ethanol solution,/kloc- In the chromatogram of the test sample, spots of the same color or fluorescent spots are respectively displayed at the positions corresponding to the chromatogram of the reference sample.
Sexual taste is pungent, bitter and cold.
Meridian, liver and gallbladder.
Functions: clearing away fire, improving eyesight, dispersing stagnation and reducing swelling. Clearing fire, improving eyesight, dispersing stagnation and reducing swelling. Used for red eyes, nocturia, headache, dizziness, scrofula, gall tumor and breast carbuncle; Goiter, tuberculosis of lymph nodes, hyperplasia of mammary glands, hypertension.
Usage and dosage 9 ~15g.
Store in a dry place.
remarks
(1) Prunella hirsuta Benth is also used as medicine in Yunnan and Tibet.
(2) It can be used for treating liver fire, conjunctival congestion, and conjunctival pain; Headache, dizziness, etc. Prunella vulgaris can clear away liver fire, which is an important medicine for treating red eyes, headache and dizziness caused by liver fire. It is often used with chrysanthemum and concha Haliotidis. For example, liver deficiency and eye pain, especially at night, can be combined with Angelica sinensis and Paeonia lactiflora.
(3) It is used to accumulate phlegm. Phlegm-core syndrome is mostly caused by stagnation of liver-qi, which turns into fire for a long time and stagnation of phlegm-fire. Prunella vulgaris can clear liver fire and disperse stagnation. It is a commonly used drug for the treatment of tuberculosis with phlegm fire. It has a certain effect after long-term administration. It is often used in combination with Scrophularia, Fritillaria, Forsythia, Oyster and Thallus Laminariae in clinic.
Prunella vulgaris is an important medicine for clearing liver fire and dispersing stagnation, and it mainly treats diseases of liver meridian. This product can clear the liver, improve eyesight, treat redness, swelling and pain, and with Concha Haliotidis and Uncaria, it can calm down liver yang and treat headache and dizziness. Combined with Scrophularia, Fritillaria, Oyster, etc., it can soften and resolve hard masses and treat tuberculosis. In recent years, the bed has been used for tumors.
Excerpt from China Pharmacopoeia