Leng Xiao Wan冷哮丸
Cold Wheezing Pill
Ingredients12 herbs
Indications
Cold-phlegm wheezing. Cold has taken hold in the Lung and bound with phlegm, so exposure of the back to cold sets off an attack; between attacks the patient may seem well.
Clinical Manifestations
- Wheezing attacks triggered by cold or by a chill on the back
- Copious clear phlegm with an audible wheeze
- Chest fullness with inability to lie flat
- Long-standing cold-type wheeze that returns each winter
- Cold-phlegm wheeze unresponsive to milder warming formulas
Health Categories
Modern Applications
Common adjustments
- Modern practice, to respect the rule — the Zhi Chuan Wu or the Ban Xia Qu is dropped rather than both being used, and Zhi Chuan Wu replaces any raw aconite
- Marked qi deficiency between attacks — this formula is stopped between attacks and a Lung-and-Kidney tonifying prescription is used instead
- Phlegm has turned yellow and thick — the formula is not appropriate — the pattern has become phlegm-heat and a clearing formula is required
- Hypertension, heart disease, or insomnia from the Ma Huang — the formula is not used; a non-ephedra warming approach is chosen
Contraindications
Contraindicated in pregnancy, in breastfeeding, and in children. Contraindicated in heart disease, arrhythmia, hypertension, hyperthyroidism and glaucoma because of the Ma Huang, and in anyone taking stimulant or monoamine-oxidase-inhibiting medication. Not for hot-type wheezing with yellow sputum, nor for deficiency wheeze with no cold. Aconite poisoning presents as numbness or tingling of the mouth and limbs, nausea, palpitations or an irregular heartbeat — any of these means stopping immediately and seeking urgent medical care. Because of the and Ban Xia pairing this formula sits outside standard practice and is dispensed only by a licensed practitioner.
For licensed practitioners’ reference only — not a self-treatment guide.
Pregnancy
Absolutely contraindicated in pregnancy. is a toxic aconite drug, Ma Huang is a strong stimulant that raises heart rate and blood pressure, is a powerful irritant, and Ban Xia and Bai Fan add further reasons — no part of this formula is acceptable during pregnancy. Not to be used while breastfeeding either. Wheezing in pregnancy is managed by a physician.
Related Formulas
References
Source Zhang Shi Yi Tong 《张氏医通》 · Qing
- Classical source (public domain) — 《张氏医通》, Qing dynasty, 张璐.
2. 《方剂学》（全国中医药行业高等教育规划教材）— appended formula in the 温化寒痰 section; placement varies between editions.
3. Scheid, Bensky, Ellis & Barolet. Chinese Herbal Medicine: Formulas & Strategies, 2nd ed. — composition cross-checked.
4. Chinese Pharmacopoeia monographs on 制川乌 (1.5–3 g, decocted first and long), 白矾 (0.6–1.5 g internally) and 麻黄 — plus the standard 十八反 incompatibility of 乌头 with 半夏.
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.