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| Chemical Name | Dosage | Reference |
|---|---|---|
| CAPRYLIC-ACID | not available | Duke, 1992 * |
| CAPSAICIN | not available | Iwu, M.M. 1993. Handbook of African Medicinal Plants. CRC Press, Boca Raton, FL 435 pp. |
| CAPSIDIN | not available | Williamson, E. M. and Evans, F. J., Potter's New Cyclopaedia of Botanical Drugs and Preparations, Revised Ed., Saffron Walden, the C. W. Daniel Co., Ltd., Essex UK, 362 pp, 1988, reprint 1989. |
| CARACURINE | not available | Duke, 1992 * |
| CARVACROL | 1.5 x phenol | Duke, 1992 * |
| CARVONE | 1.5 x phenol | Wagner & Wolff, eds. 1977. New Natural Products (RS164. I56. 176) |
| CASSAIDINE | not available | Duke, 1992 * |
| CASSAINE | not available | Duke, 1992 * |
| CASSAMINE | not available | Duke, 1992 * |
| CATECHOL | not available | Duke, 1992 * |
| CENTROLOBINE | not available | Jeffery B. Harborne and H. Baxter, eds. 1983. Phytochemical Dictionary. A Handbook of Bioactive Compounds from Plants. Taylor & Frost, London. 791 pp. |
| CEPHARANTHINE | not available | Wagner & Wolff, eds. 1977. New Natural Products (RS164. I56. 176) |
| CHAMAZULENE | not available | Williamson, E. M. and Evans, F. J., Potter's New Cyclopaedia of Botanical Drugs and Preparations, Revised Ed., Saffron Walden, the C. W. Daniel Co., Ltd., Essex UK, 362 pp, 1988, reprint 1989. |
| CHELERYTHRINE | not available | Duke, 1992 * |
| CHLORINE | not available | Martindale's 29th |
| CHLOROGENIC-ACID | not available | Duke, 1992 * |
| CHROMOLAENIDE | not available | De Smet, P.A.G.M., Keller, K., Hansel, R. and Chandler, R.F., eds. 1993. Adverse Effects of Herbal Drugs 2. Springr-Verlag, Berlin. 348pp. |
| CHRYSOPHANOL | not available | Duke, 1992 * |
| CITRAL | 5.2 x phenol | Duke, 1992 * |
| CITRIC-ACID | not available | Martindale's 29th |
| Plant Name | Common Name | Chemical Count | Total Parts Per Million |
|---|---|---|---|
| Oenothera biennis | Evening-Primrose | 8 | 90 |
| Olea europaea | Olive | 12 | 0 |
| Ononis spinosa | Spiny Restharrow; Restharrow; Hauhechel (Ger.) | 9 | 0 |
| Ophiopogon japonicus | Mai-Men-Dong; Mai-Men-Tung | 2 | 32 |
| Opopanax chironium | Hercules All Heal; Opopanax | 1 | 0 |
| Opuntia ficus-indica | Indian Fig; Prickly Pear; Nopal; Nopalito | 6 | 51, 180 |
| Origanum creticum | Dittany Of Crete | 3 | 0 |
| Origanum majorana | Marjoram; Sweet Marjoram | 24 | 5, 156, 042 |
| Origanum minutiflorum | Small-Flowered Oregano | 13 | 21, 120 |
| Origanum onites | Oregano; Pot Marjoram | 17 | 81, 054.60000000894 |
| Origanum sipyleum | Bayircayi; Guveyoto | 11 | 23, 184 |
| Origanum syriacum | Za'Atar | 11 | 78, 285.30000000447 |
| Origanum vulgare | Greek Oregano; Wild Oregano; Common Turkish Oregano | 30 | 13, 725, 711.50000012 |
| Oryza sativa | Rice | 9 | 101, 046.89999997616 |
| Oxalis tuberosa | Oca; Papa Roja; Quiba | 1 | 13, 704 |
| Pachira macrocarpa | Large-Fruited Provision Tree | 1 | 510 |
| Pachyrhizus erosus | Yambean | 1 | 3, 690 |
| Paeonia lactiflora | Chih-Shao; Peony; Common Garden Peony; White Peony; Bai Shao (Chinese) | 5 | 55, 120 |
| Paeonia moutan | Moutan; Tree Peony | 3 | 30 |
| Paeonia officinalis | Double Peony | 2 | 0 |