Uncaria rhynchophylla (Miq.) Jacks, Rubiaceae, is one of the original plants of the important Chinese crude drug, Gou-teng, mainly used for the treatment of convulsion, hypertension, epilepsy, eclampsia, and cerebral diseases. The pharmacological activities of this plant are related to the presence of active compounds predominantly indole alkaloids. In this article, we have reviewed some reports about the pharmacological activities of the main indole alkaloids isolated from U. rhynchophylla. This review paper will contribute to the studies on the chemistry, safety and quality control of medicinal preparations containing Uncaria species.
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