It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Some features of ATS will be disabled while you continue to use an ad-blocker.
Ephedra is a broncho-dilator that herbalists value as a natural and effective alternative to asthma and allergy drugs.
Ephedrine is the active constituent of ephedra.
In a 50 mg dose of ephedra (which Dr. Page describes as an "effective dose") you're getting 0.5 mg of ephedrine. But certain products that isolate and boost ephedrine (as most of the weight-loss products do) may contain as much as 20 mg of ephedrine - 40 times the amount that you get in the natural herb.