Li Zhong An Hui Tang理中安蛔汤
Regulate the Middle and Calm Roundworms Decoction
Ingredients6 herbs
Indications
Roundworm agitation on a background of cold and deficiency in the middle burner. The Spleen and Stomach yang is weak, cold predominates, and the classical picture of restless roundworms appears with paroxysmal pain and vomiting.
Clinical Manifestations
- Intermittent colicky abdominal pain in a cold, deficient patient
- Vomiting, sometimes of a roundworm, with cold limbs
- Pain that eases with warmth and pressure
- Poor appetite and loose stools alongside the pain
- Classical roundworm patterns in a person too weak for expulsion
Health Categories
Modern Applications
Common adjustments
- Cold more severe with cold limbs — increase Gan Jiang 干姜 — the change is made by a practitioner, not by the patient
- Heat signs also present — bitter taste, yellow coating — this formula alone is too warm; the mixed cold-heat picture is what Wu Mei Wan 乌梅丸 is built for
- Severe pain during an attack — add Bai Shao 白芍 with Gan Cao 甘草 to relax the spasm
- Marked qi deficiency — increase Ren Shen 人参
Contraindications
Not for heat patterns — a red tongue, yellow coating, thirst or fever means the warming herbs are wrong. Not for damp-heat or excess accumulation in the intestines. Most importantly, it must not be relied on where a parasitic infection is actually suspected: severe or worsening abdominal pain, jaundice, fever, vomiting that will not stop, or a worm seen in vomit or stool are reasons for urgent medical assessment, since biliary ascariasis and intestinal obstruction are surgical emergencies. Hua Jiao is kept within its 3–6 g limit and is not used long term.
For licensed practitioners’ reference only — not a self-treatment guide.
Pregnancy
Not used in pregnancy without specialist supervision. Hua Jiao is acrid and hot and is traditionally restricted during pregnancy, and any suspicion of parasitic infection in a pregnant patient needs obstetric and infectious-disease assessment, since the choice and timing of antiparasitic treatment in pregnancy is a medical decision.
Related Formulas
References
Source 《类证治裁》 · Ming
- 《万病回春》(classical source, public domain) — the appended-formula record for 乌梅丸.
2. Scheid, Bensky, Ellis & Barolet. Chinese Herbal Medicine: Formulas & Strategies, 2nd ed. — composition & dosage cross-checked.
3. 《方剂学》（全国中医药行业高等教育规划教材）— pattern analysis cross-checked.
4. 《中华人民共和国药典》(2020 ed.) — dose ceilings and toxicity gradings for the herbs named above.
Professional reference notice. Entries are scholarly references for licensed TCM practitioners and students — not medical advice, and not a recommendation to self-prescribe. Chinese herbal formulas should be used under the guidance of a qualified practitioner. Content is an original editorial compilation by Cura x Cura, cross-checked against the cited references.