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Introduction To Mux-Vomica Seed (ma qian zi)










Mux-Vomica Seed (ma qian zi)

Semen Strychni

Properties: Bitter in flavour, cold in nature, it is toxic and tropistic to the liver and spleen channels. Being strongly toxic, it is rather effective in counteracting toxic substances, resolving mass or swelling and clearing channels to relieve pain.

Effects: Counteracting toxic substances, and clearing channels to relieve pain.


1. For scrofula or boil, it is often used with herbs for subduing swelling and relieving pain, such as Radix Angelicae Sinensis, Resina Olibani, Moschus, etc. ; for injury, blood stasis, pain and swelling, it is used with drugs for removing blood stasis and relieving pain, such as Flos Carthami Resina Olibani, Myrrha, Moschus, etc.

2. For obstinate arthralgia of wind-dampness type and arthrodynia numbness and paralysis, it is often used with herbs for clearing obstruction in channels to relieve pain, such as Radix Aconiti, Scorpio, Agkistrodon acutus, etc.

In recent years, it has been used in combination with drugs for detoxicating and resolving mass, such as Realgar, Squama Manitis, Scorpio, Bombyx Batryticatus, etc. to treat various kinds of cancer and showed certain effects.

Dosage and Administration: 0.3-0.6 for oral dose, used in pills or powder after being processed; proper amount for external use.

Precautions: This herb is strong in toxicity, so when taken orally, its dosage should be controlled strictly, and is prohibited in pregnancy.


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