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| Chemical Name | Dosage | Reference |
|---|---|---|
| XESTOQUINONE | IC50=0.15 ug/ml | Bae, M. A., Tsuji, T., Kondo, K., Hirase, T., Ishibashi, M., Shigemori, H., Kobayashi, J. I. 1993. Inhibition of Mammalian Topoisomerase I by Xestoquinone and Halenaquinone. Biosci. Biotech. Biochem., 57: 330-331. |
| Plant Name | Common Name | Chemical Count | Total Parts Per Million |
|---|---|---|---|
| Rheum officinale | Chinese Rhubarb | 1 | 25.700000762939453 |
| Rheum palmatum | Chinese Rhubarb | 1 | 0 |
| Rheum rhabarbarum | Rhubarb | 1 | 53 |
| Rhododendron dauricum | Chinese Alpenrose | 3 | 0 |
| Rhododendron ponticum | Pontic Alpenrose | 1 | 0 |
| Rhus coriaria | Sicilian Sumac; Sumac; Tanner's Sumac | 3 | 0 |
| Rhus glabra | Smooth Sumac | 1 | 0 |
| Rhus toxicodendron | Poison Ivy | 4 | 0 |
| Rhynchosia acuminatifolia | not available | 1 | 12 |
| Rhynchosia cabibaea | not available | 1 | 10 |
| Rhynchosia densiflora | not available | 1 | 12 |
| Rhynchosia hirsuta | not available | 1 | 12 |
| Rhynchosia minima | Burn Mouth Vine | 2 | 12 |
| Rhynchosia phaseoloides | not available | 1 | 12 |
| Rhynchosia pyramidalis | not available | 1 | 20 |
| Rhynchosia volubilis | not available | 1 | 10 |
| Ribes nigrum | Black Currant | 3 | 0 |
| Ricinus communis | Castorbean | 4 | 0 |
| Robinia pseudoacacia | Black Locust | 3 | 0 |
| Rosa canina | Rose; Dogbrier; Dog Rose | 1 | 0 |