Category: drugs for promoting blood circulation and removing blood stasis

Pinyin: MA QIAN ZI

Latin: Semen Strychni

English: Nux Vomica, Dong Button

Alias: Momo Trionyx sinensis, Doo (Feihong Collection), Badu (Compendium), Kushi (Primitive Materia Medica), Ma Qian, Niu Yin (Seeking the Primitive Materia Medica), Da and Fang Ba (Handbook of Chinese Herbal Medicine).

Prescription name: Semen Strychni, Semen Strychni, Raw Semen Strychni, Processed Semen Strychni, Baked Semen Strychni, Sand-baked Semen Strychni, Oil-baked Semen Strychni, Water-baked Semen Strychni, etc.

Semen Strychni and Semen Strychni written in the prescription refer to raw semen Strychni. Removing impurities from the original medicine and grinding wool into powder for use as medicine. Extremely toxic, so be careful when using it.

Roasted Semen Strychni in sand or called roasted Semen Strychni. In order to clean the nux vomica, stir-fry it with sand until the swelling inside is brown, and take it out for medicine. Toxicity is reduced.

Oil-fried semen Strychni is also called oil-fried semen Strychni. In order to take out the clean nux vomica when it is fried in vegetable oil until the inside is brown. Toxicity is reduced.

Water-baked Semen Strychni is prepared by boiling Semen Strychni with water, soaking in water, slicing and drying. Because of the low boiling temperature, its toxicity cannot be greatly reduced, and the dosage should be small.

Semen Strychni preparata is a general term for semen Strychni preparata with sand, oil and water.

Medicinal parts: mature seeds

Plant morphology: evergreen tree, height10 ~13m. Leaves opposite, stipe; Leaf blade broadly ovoid, apex acute or slightly concave, entire, leathery and shiny, with 5 main veins and 3 rare ones. Cymes are terminal, with small, white, nearly sessile flowers; Calyx apex 5-lobed; Corolla tubular; Stamens 5, without filaments; The ovary is superior, and the style is similar to the corolla. Berry is spherical, with a diameter of 6 ~13 cm, orange when ripe and smooth surface. 3 ~ 5 or more seeds, disc-shaped, densely covered with silver hairs, and the seed stalk is born in the center of one side.

Characteristics of medicinal materials: the seeds are oblate and button-shaped, with one side slightly concave and the other slightly convex, with a diameter of1.2 ~ 3 cm and a thickness of 3 ~ 6 mm, with a grayish green or grayish yellow surface and dense silver-gray filiform hairs creeping from the center to Sichuan; There is a seed navel with a dot-like protrusion in the center of the bottom surface and a micropyle on the edge. Hard texture, yellowish white endosperm, horny, heart-shaped cotyledons, and 5-7 veins can be seen in parallel sections. It is odorless and tastes extremely bitter.

Origin: Strychno: India, Vietnam, Myanmar, Thailand, Sri Lanka (Yunnan Strychno: Yunnan)

Harvesting, processing and storage: harvesting in September ~10, picking mature fruits, taking out seeds, washing attached pulp and drying in the sun. After sanding to remove hair, grind it into powder.

Processing method: Semen Strychni powder: take sand, stir-fry in a pot, add the cleaned Semen Strychni, stir-fry until dark yellow and swell, take out, sieve the sand, scrape off the hair, and grind into powder. Oil Semen Strychni: Take clean Semen Strychni, add water to boil, take it out, soak it in water, take it out, scrape off the fur, dry it slightly, and cut it into thin slices. In addition, take a little sesame oil, heat it in a pot, add nux vomica slices, fry until it is yellowish, take it out and let it cool. "Compendium": "Or the cloud uses tofu to make it useful."

Tropism of nature and taste: bitter, cold and toxic. ① Compendium: "Bitter, cold and toxic." ② Primitive Materia Medica: "Bitter, cold, and poisonous." Liver and spleen meridians entered.

Indications: dredging collaterals, relieving pain, dispersing stagnation and relieving swelling. Used for rheumatism, numbness, paralysis, traumatic injury, carbuncle, swelling and pain; Sequela of polio, rheumatoid joint pain. Numbness and paralysis, myasthenia gravis, etc.

Administration and dosage: oral administration: after processing, it is made into pills and powder, with a daily dose of 0.3～0.6g (large dose of 0.9g). Appropriate amount for external use, grinding and spreading, or soaking in water, grinding with vinegar, frying in oil, or decocting and spreading.