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In the United States, purchasing tea (also known as Ma Huang ) is restricted. While the whole plant and traditional tea preparations are technically legal for certain uses, the FDA banned the sale of dietary supplements containing ephedrine alkaloids in 2004 due to serious heart and stroke risks. buy ephedra sinica tea
: Mormon pioneers, following the "Word of Wisdom" (a religious health code), were prohibited from drinking "hot drinks," which at the time meant coffee and caffeinated tea. : Because the American species (like Ephedra nevadensis