Overview

Fever bark is the bark of an evergreen tree called Alstonia constricta. The tree is native to Australia and grows to 15 meters tall.

Fever bark contains the chemicals yohimbine and reserpine, which can lower blood pressure. These chemicals might also be unsafe.

People use fever bark for high blood pressure, malaria, rheumatoid arthritis (RA), and many other conditions, but there is no good scientific evidence to support these uses.

Don't confuse fever bark with Cinchona, which is sometimes called fever bark or fever tree. These are not the same.
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CONDITIONS OF USE AND IMPORTANT INFORMATION: This information is meant to supplement, not replace advice from your doctor or healthcare provider and is not meant to cover all possible uses, precautions, interactions or adverse effects. This information may not fit your specific health circumstances. Never delay or disregard seeking professional medical advice from your doctor or other qualified health care provider because of something you have read on WebMD. You should always speak with your doctor or health care professional before you start, stop, or change any prescribed part of your health care plan or treatment and to determine what course of therapy is right for you.

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© Therapeutic Research Faculty 2020.