Má Huáng (麻黄) — Ephedra
On this page
- Overview
- UK regulatory status
- Properties
- Actions and indications
- Key formulas
- Modern research
- Cautions and contraindications
- Treatment at my clinic
1. Overview
Má Huáng (麻黄) is the dried stem of Ephedra sinica (and related Ephedra species), known in English as ephedra. It belongs to the category of Warm-acrid herbs that release the Exterior and is the strongest diaphoretic in the Chinese Materia Medica. Má Huáng has been used for over two millennia in Chinese herbal medicine for wind-cold colds with chills, fever, no sweating and body aches, and for cold-pattern wheezing.
Because the herb contains active sympathomimetic alkaloids (ephedrine and pseudoephedrine), its use in the United Kingdom is strictly regulated and reserved for prescription by qualified herbalists working within professional guidelines. The information below is provided for educational purposes only.
2. UK regulatory status
Under UK medicines law, Ephedra is a Schedule 1 herbal medicine: it may only be supplied by qualified herbal practitioners during a one-to-one consultation. It is not available for over-the-counter sale or for self-prescription. International regulators have placed similar or stricter restrictions on ephedra, particularly in non-traditional contexts (eg weight-loss supplements), where it has been associated with serious cardiovascular adverse events. The clinical use described here refers to traditional TCM prescribing in carefully balanced formulas, not to extracted ephedrine or to recreational, performance or weight-loss use, all of which carry significant risk and are outside accepted herbal practice.
3. Properties
| Pinyin name | Má Huáng |
|---|---|
| Chinese characters | 麻黄 |
| Latin name | Ephedra sinica (and related Ephedra spp.) |
| English name | Ephedra |
| Nature | Warm |
| Flavour | Acrid, slightly bitter |
| Channels entered | Lung, Bladder |
| Category | Warm-acrid herbs that release the Exterior |
4. Actions and indications
Principal actions
- Induces sweating and releases the Exterior in wind-cold patterns
- Disperses Lung Qi and calms wheezing
- Promotes urination and reduces oedema
Indications
- Acute wind-cold colds with marked chills, fever, no sweating, body aches and headache
- Cold-pattern wheezing and asthma with thin, watery, white sputum
- Acute wind-water oedema (oedema of the face and upper body with concurrent wind-cold exterior signs)
5. Key formulas containing Má Huáng
Má Huáng is the chief herb in Ma Huang Tang (Ephedra Decoction) for wind-cold exterior excess. It also appears in Ma Xing Shi Gan Tang (Ephedra, Apricot Kernel, Gypsum and Licorice Decoction) for Lung Heat with wheezing, and in Xiao Qing Long Tang (Minor Bluegreen Dragon Decoction) for exterior wind-cold with internal cold and thin phlegm.
6. Modern research
Ephedra stems contain the alkaloids ephedrine and pseudoephedrine, plus smaller quantities of related sympathomimetics. Ephedrine has well-documented bronchodilator, decongestant and stimulant effects, mediated through α- and β-adrenergic activity. Research has also examined diaphoretic, antitussive and anti-inflammatory effects of whole-herb preparations. Clinical use in traditional formulas, where ephedra is balanced with herbs that moderate its action (eg gan cao, gui zhi, xing ren), is associated with a markedly lower adverse-event profile than isolated ephedrine, but the herb still requires careful prescribing.
7. Cautions and contraindications
Contraindicated in hypertension, ischaemic heart disease, arrhythmia, hyperthyroidism, glaucoma, prostatic enlargement with urinary retention, and pregnancy. Avoid in patients on monoamine oxidase inhibitors (MAOIs), sympathomimetic drugs, decongestants and stimulant weight-loss products. Not appropriate in deficiency patterns presenting with spontaneous sweating, exhaustion or Yin deficiency. Use with caution in the elderly. Never combined with caffeine-stacked or weight-loss preparations; this combination has caused serious harm and is not part of legitimate herbal practice.
Important: Chinese herbs should always be prescribed by a fully qualified herbalist who is a member of the Register of Chinese Herbal Medicine (RCHM). Ephedra in particular should never be self-prescribed under any circumstances. Dr (TCM) Attilio D’Alberto is a member of the RCHM and the British Acupuncture Council with over 25 years of clinical experience.
8. Treatment at my clinic
Where clinically indicated, I may prescribe Má Huáng within carefully balanced formulas for acute wind-cold colds with marked muscle ache, and for selected cold-pattern wheezing presentations of asthma — always alongside, never instead of, conventional medical management. Every prescription is individually formulated following a full TCM assessment, with explicit screening for cardiovascular and drug-interaction risks.
I see patients in person at my clinic in Wokingham, Berkshire. Online Chinese herbal medicine consultations are available for patients throughout the UK and internationally, with herbs dispensed by post. Visit the prices page for consultation fees.
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