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| Chemical Name | Dosage | Reference |
|---|---|---|
| SPARTIOIDINE | not available | Duke, 1992 * |
| SPECTABILINE | not available | Duke, 1992 * |
| SUPININE | not available | Jeffery B. Harborne and H. Baxter, eds. 1983. Phytochemical Dictionary. A Handbook of Bioactive Compounds from Plants. Taylor & Frost, London. 791 pp. |
| SYMPHYTINE | not available | Duke, 1992 * |
| TANNIC-ACID | not available | Huang, K. C. 1993. The Pharmacology of Chinese Herbs. CRC Press, Boca Raton, FL 388 pp. |
| TETRANDRINE | not available | Wagner & Wolff, eds. 1977. New Natural Products (RS164. I56. 176) |
| Plant Name | Common Name | Chemical Count | Total Parts Per Million |
|---|---|---|---|
| Pycnanthemum torreyi | Torrey's Mountain Mint | 1 | 820 |
| Pycnanthemum verticillatum | Whorled Mountain Mint | 1 | 14, 595 |
| Pycnanthemum virginianum | Virginia Mountain Mint | 1 | 19, 024 |
| Pyrus communis | Pear | 1 | 6 |
| Quararibea cordata | Chupa-Chupa; Sapote | 1 | 62 |
| Quercus alba | White Oak | 1 | 0 |
| Quercus infectoria | Aleppo Oak; Dyer's Oak; Gall Oak | 1 | 0 |
| Raphanus sativus | Radish | 1 | 475 |
| Rheum palmatum | Chinese Rhubarb | 3 | 4 |
| Rheum rhabarbarum | Rhubarb | 2 | 90 |
| Rhizophora mangle | Red Mangrove | 2 | 116, 800 |
| Rhodymenia palmata | Dulse | 1 | 0 |
| Rhus coriaria | Sicilian Sumac; Sumac; Tanner's Sumac | 1 | 0 |
| Rhynchosia minima | Burn Mouth Vine | 1 | 0 |
| Ribes nigrum | Black Currant | 4 | 17 |
| Ribes rubrum | Red Currant; White Currant | 1 | 12 |
| Ribes uva-crispa | Gooseberry | 1 | 25 |
| Ricinus communis | Castorbean | 1 | 13 |
| Rollinia mucosa | Biriba; Lancewood | 1 | 44 |
| Rosa canina | Rose; Dogbrier; Dog Rose | 2 | 204 |