> Supplement Index > Quassia / Picrasma amara / Bitter Ash > Quassia General Information Quassia Uses & Scientific Evidence For Quassia Dosage Information Quassia Safety & Interaction Information Buy Products That Contain Quassia - - - - - - - - - - - - Back to Top - - - - - - - - - - - - Quassia General Information Quassia is also known as bitter wood or bitter ash and is native to the tropical regions of Central and South America and the Caribbean. It contains many of the same anti-malarial phytochemicals as quinine and is used in the same manner as quinine bark in treating digestive problems, malaria, fevers, and dysentery. It has also been used as an insecticide and, due to its properties, works well as a tonic. Quassia has anti-parasitic, anti-inflammatory, anti-leukemic, anti-cancer, anti-tumor, anti-viral, astringent, laxative, sedative, blood cleansing, insecticidal, anti-ulcer, and digestive and bile stimulant properties. - - - - - - - - - - - - Back to Top - - - - - - - - - - - - Quassia Uses & Scientific Evidence For Quassia works well as a tonic, blood cleanser, digestive aid, and laxative. It can stimulate the appetite and help reduce the symptoms of alcohol withdrawal. The bark is used to treat malaria, snakebite, fevers, parasites, dysentery, dyspepsia, intestinal gas, stomachache, anemia, and liver and gastrointestinal disorders. In Mexico the bark is used for liver and gallbladder diseases. Quassia leaves are used in a bath for treating measles, or as a mouthwash after tooth extractions. Quassia also kills lice, fleas, scabies, and other skin parasites. - - - - - - - - - - - - Back to Top - - - - - - - - - - - - Quassia Dosage Information Quassia comes in various forms and is an ingredient in many products. When taking an infusion, the standard dose is 1 cup 2-3 times daily. The standard dose in tablet or capsule form is 1-2g 2-3 times daily. For other formulations or products, read and follow product label directions. - - - - - - - - - - - - Back to Top - - - - - - - - - - - - Quassia Safety & Interaction Information Quassia has no known safety issues or interactions when taken in the recommended doses; however, exceeding the recommended dosage can produce depression, nausea, stomach irritation and vomiting. Taking Quassia for prolonged periods of time may lead to weak vision and blindness. Quassia is not to be used by pregnant women. Safety in young children, nursing women, or those with severe liver or kidney disease is not known. - - - - - - - - - - - - Back to Top - - - - - - - - - - Buy Products That Contain Quassia Below