Madagascar periwinkle is used for diabetes, cancer, sore throat, cough, insect bite, and many other conditions, but there is no good scientific evidence to support these uses. Using Madagascar periwinkle can also be unsafe.
Purified forms of some chemicals found in Madagascar periwinkle are approved by the U.S. Food and Drug Administration (FDA) to be given by injection for the treatment of cancer. These drugs have serious side effects and should be administered only under medical supervision. Madagascar periwinkle is considered unsafe for self-medication.
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Vinblastine and vincristine, some chemicals that can be taken out of Madagascar periwinkle, are approved by the US Food and Drug Administration (FDA) for use in chemotherapy. Other chemicals in Madagascar periwinkle might also have anticancer activity, but they have not been well studied.
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© Therapeutic Research Faculty 2020.