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Bitterwood
Quassia amara L.
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Quick Facts
A tree whose wood is an extremely potent bitter. It is used as a digestive stimulant for anorexia and dyspepsia. It is also a powerful insecticide and vermicide, used for lice and intestinal worms.
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Healing Properties
Treats & Supports
Important Safety Information
Class 2b. Contraindicated in pregnancy. Overdose is a gastroirritant. Extended use may damage vision.
Verified Medicinal Sources & Usage
Direct links to U.S. government health databases for Bitterwood (Quassia amara L.). No commercial or third-party sources.
Peer-reviewed studies on medicinal properties & evidence
Active clinical trials, phases & safety markers
Federally funded research & biological mechanisms
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Consumer usage instructions & safety (NIH)
Complementary & integrative health evidence (NIH)
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