Pharmaceutical Latin: Hirudo
Common English: Leech
Herbs that Regulate the Blood: Herbs that Invigorate the Blood
Taste Temperature Entering Meridians Dosage
Slightly Toxic
Powders and Pills: 0.3-0.6g
Cancers: 6-9g
Actions Indications/Syndromes

Breaks up and drives out Blood Stasis and reduces fixed masses

Amenorrhea and fixed uterine and abdominal masses due to Blood Stasis and/or traumatic injury

Clears the water passages  
Induces abortion Abortion
  • Contraindicated during pregnancy.
  • Contraindicated for those with Blood Deficiency.
  • Contraindicated for those with weakness without Stasis.
  • Do not use often.
  • Use with caution for patients taking anticoagulants such as heparin, warfarin (Coumadin) and enoxaparin (Lovenox) or antiplatelet drugs such as aspirin, dipyridamole (Persantine) and clopidogrel (Plavix) as concurrent use may have an additive or synergistic effect.

Sm. Persicae
Tao Ren
Meng Chong
(Rx. et Rz. Rhei)
(Da Huang)

Rz. Sparganii
San Leng
Rz. Curcumae
E Zhu
Rx. Angelicae Sinensis
Dang Gui

Rx. Notoginseng
San Qi

Blood Stasis in the lower abdomen with amenorrhea and masses.

Palpable, fixed abdominal masses.

Trauma-induced pain, swelling and bruising.

Hai Zao

Natrii Sulfas
Mang Xiao
Rx. et Rz. Rhei
Da Huang

Rx. et Rz. Rhei
Da Huang

Sm. Pharbitidis
Qian Niu Zi

Palpable, fixed masses of the throat as in esophageal carcinoma.

Fever, delirium, abdominal distention, urinary incontinence and, in severe cases, a dull dusky-yellow discoloration of the skin from Blood Stasis due to Invasion of Heat.

Pain and swelling from trauma.

Rx. et Rz. Rhei
Da Huang

Meng Chong

Rx. Ginseng
Ren Shen
Rx. Rehmanniae Preparata
Shu Di Huang

Regulates Yin and Yang to quickly attack and break up Blood Stasis.

Resolves severe Blood Stasis with mania, and abdominal masses or severe Blood accumulation following trauma.

Amenorrhea due to Blood Stasis in Deficiency.

Sm. Persicae
Tao Ren
Meng Chong



Abdominal pain and hardness with black tarry stools.



  1. This substance has an inhibitory effect on cancer cells.
  2. This substance removes Blood Stasis without damaging fresh Blood.
  3. It treats carbuncle and poisonous swelling.
  4. It treats menopause, uterine masses and abdominal masses.
  5. For metrostaxis (spotting), bake and crush into a powder for oral administration. Take 3g with wine, twice a day until the Blood disappears.
  6. Both Shui Zhi and Rz. Sparganii San Leng break up Blood Stasis and enter the Blood level of the Liver channel. San Leng is bitter, neutral and also enters the Spleen and the Qi Level. It is stronger at quickly attacking and breaking up accumulation, but it easily injures normal Qi. It also relieves Food Stagnation.
  7. Both Shui Zhi and Tabanus Meng Chong enter the Blood level of the Liver to strongly break up Blood Stasis and accumulation. Shui Zhi is neutral, gradual, stable and consistent. Meng Chong is slightly cold and somewhat toxic. It sudden and strong. but short-lived.
  8. Shui Zhi, Meng Chong and Eupolyphaga Tu Bie Chong are all very strong substances to break open severe Blood Stasis. They can easily injure Qi if not used properly. If necessary, tonic herbs should be added to prevent damage. Meng Chong is the strongest, followed by Shui Zhi and then Tu Bie Chong.
  9. Talc-fried Leech Hua Shi Chao Shui Zhi is less toxic and more suitable for use in powders and pills.