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nausea and vomiting. In very large doses, it could cause abnormal heart function; however, most people throw up before they get a high enough dose to cause heart problems. Long-term use can cause vision changes and blindness.
Quassia is POSSIBLY SAFE when used on the skin.
Special Precautions & Warnings:Pregnancy and breast-feeding: Quassia is LIKELY UNSAFE when taken by mouth during pregnancy or breast-feeding. It can cause cell damage and nausea.
There is not enough reliable information about the safety of applying quassia to the skin or scalp you are pregnant or breast-feeding. Stay on the safe side and avoid use.
Digestive tract problems or diseases, such as stomach or intestinal ulcers, Crohn's disease, infections, and many other conditions: In large amounts quassia can irritate the digestive tract. Don't use it if you have one of these conditions.
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.