The dried leaves of Ilex paraguayensis and other species of Ilex (family Aquifoliaceae), shrubs growing in Paraguay and Brazil, which contain caffeine and tannin; used in South American countries as a beverage and medicinally as a diuretic and diaphoretic, and to relieve headache.
Synonym(s): Paraguay tea
[Sp. maté, a vessel in which the leaves are prepared]
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Examples: glitazone, GI cocktail, etc.