An official website of the United States government.
| Chemical Name | Dosage | Reference |
|---|---|---|
| SWERTISIN | not available | Advance in Chinese Medicinal Materials Research. 1985. Eds. H. M. Chang, H. W. Yeung, W. -W. Tso and A. Koo. World Scientific Publishing Co., Philadelphia Pa., page 211. |
| TANNIN | not available | Duke, 1992 * |
| TAXIFOLIN | not available | Advance in Chinese Medicinal Materials Research. 1985. Eds. H. M. Chang, H. W. Yeung, W. -W. Tso and A. Koo. World Scientific Publishing Co., Philadelphia Pa., page 253. |
| TOCOPHEROL | not available | Duke, 1992 * |
| URSOLIC-ACID | 1-100 ug/ml | Duke, 1992 * |
| URSOLIC-ACID | 10 mg/kg | Duke, 1992 * |
| VITAMIN-B | not available | Duke, 1992 * |
| VITAMIN-B3 | not available | Duke, 1992 * |
| VITAMIN-E | not available | Duke, 1992 * |
| XANTHOTOXIN | IC50=2.5 uM | Duke, 1992 * |
| XANTHOTOXIN | 0.5 ppm | Duke, 1992 * |
| XYLITOL | not available | Fitoterapia No.5-1986. |
| ZEAXANTHIN | not available | Duke, 1992 * |
| ZEAXANTHIN-DIPALMITATE | not available | Duke, 1992 * |
| Plant Name | Common Name | Chemical Count | Total Parts Per Million |
|---|---|---|---|
| Quercus infectoria | Aleppo Oak; Dyer's Oak; Gall Oak | 4 | 120, 000 |
| Quercus robur | English Oak | 5 | 200, 000 |
| Quercus rubra | Northern Red Oak | 5 | 160, 000 |
| Quercus suber | Cork Oak | 1 | 65, 000 |
| Quercus velutina | Black Oak | 1 | 0 |
| Quillaja saponaria | Soapbark | 1 | 150, 000 |
| Quisqualis indica | Rangoon Creeper | 2 | 24, 300 |
| Raphanus sativus | Radish | 5 | 5, 037 |
| Rauvolfia serpentina | Indian Snakeroot; Serpentine Wood | 1 | 4, 000 |
| Rauvolfia tetraphylla | Four-Leaf Devilpepper; Pinque-Pinque | 1 | 0 |
| Rauvolfia vomitoria | African Snakeroot | 1 | 0 |
| Ravensara aromatica | Ravensara | 1 | 170 |
| Rehmannia glutinosa | Chinese Foxglove | 3 | 1, 000 |
| Rheum officinale | Chinese Rhubarb | 5 | 16, 654.30009841919 |
| Rheum palmatum | Chinese Rhubarb | 5 | 14, 275.5 |
| Rheum rhabarbarum | Rhubarb | 6 | 6, 159 |
| Rhizophora mangle | Red Mangrove | 3 | 520, 000 |
| Rhododendron dauricum | Chinese Alpenrose | 7 | 0 |
| Rhododendron ferrugineum | Rusty-Leaved Alpenrose | 4 | 0 |
| Rhododendron ponticum | Pontic Alpenrose | 7 | 120, 000 |