Ephedra (Ma Huang)
ephedra, ma huang, ephedrine alkaloids
Sold freely in China and banned in United States. Same substance, same evidence, different decisions.
A stimulant herb once central to weight-loss and energy supplements.
Ephedra is the supplement the US actually banned, a rare event under DSHEA. After reports of serious cardiovascular events and deaths, the FDA issued a 2004 final rule prohibiting ephedrine-alkaloid dietary supplements. It remains a landmark: the case that showed the US "market-first" system can pull a product, but usually only after harm is well documented. As a traditional Chinese herb (ma huang), it retains a regulated medicinal role elsewhere.
Where it stands, jurisdiction by jurisdiction
China
Restricted, restrictedDecided on: Custom and history, Precaution
The herb and the isolated alkaloid sit in different regulatory categories. Ma huang (Ephedra sinica, and also Ephedra intermedia and Ephedra equisetina) is an official medicinal material in the Pharmacopoeia of the People's Republic of China, used in traditional Chinese medicine under practitioner guidance, so it is not banned as the Western weight-loss supplement was. Separately, isolated ephedrine is an internationally controlled precursor, listed in Table I of the 1988 UN Convention and on the INCB Red List. As a signatory to that convention, China regulates the import and export of ephedrine and pseudoephedrine as precursor chemicals, so trade in the isolated alkaloid is export-controlled even where the herb remains a licit medicinal material.
United States
Banned, bannedDecided on: Precaution, Evidence
Two separate federal tracks apply. As a supplement, the FDA's 2004 final rule (69 FR 6788, published Feb 11, 2004, effective Apr 12, 2004) declared dietary supplements containing ephedrine alkaloids adulterated because they pose an unreasonable risk of serious cardiovascular events, including heart attack, stroke, and death. The rule reached ephedra and ma huang sources but did not extend to traditional medicine remedies or conventional foods such as herbal teas. The 10th Circuit upheld the ban in Nutraceutical Corp. v. Von Eschenbach, 459 F.3d 1033 (Aug 17, 2006). Separately, isolated ephedrine is a List I controlled chemical, and the Combat Methamphetamine Epidemic Act of 2005 (effective 2006) placed nonprescription ephedrine products under DEA retail controls, with sales limits, logbooks, and behind-the-counter placement.
- Federal Register, FDA Final Rule Declaring Dietary Supplements Containing Ephedrine Alkaloids Adulterated (69 FR 6788, 2004)
- Nutraceutical Corp. v. Von Eschenbach, 459 F.3d 1033 (10th Cir. 2006), upholding the FDA ephedra ban
- DEA Diversion Control Division, Combat Methamphetamine Epidemic Act of 2005 (ephedrine as a List I chemical)
Regulatory positions change, sometimes quickly. Check the date on a source before relying on it.