An official website of the United States government.
| Chemical Name | Dosage | Reference |
|---|---|---|
| 5-METHOXY-PSORALEN | not available | Economic & Medicinal Plant Research, 6: 189. |
| 8-METHOXY-PSORALEN | not available | Economic & Medicinal Plant Research, 6: 189. |
| IMPERATORIN | not available | Duke, 1992 * |
| PHENYLALANINE | 100 mg/kg/day/orl/man | Martindale's 29th |
| XANTHOTOXIN | 20 mg/man/day | Duke, 1992 * |
| Plant Name | Common Name | Chemical Count | Total Parts Per Million |
|---|---|---|---|
| Pinus edulis | Pinyon Pine | 1 | 4, 710 |
| Pinus pinea | Italian Stone Pine; Pignolia | 1 | 25, 600 |
| Pistacia vera | Pistachio | 1 | 12, 317 |
| Pisum sativum | Pea | 1 | 18, 362 |
| Portulaca oleracea | Purslane; Verdolaga | 1 | 23, 000 |
| Prunus armeniaca | Apricot | 1 | 3, 810 |
| Prunus cerasus | Sour Cherry | 1 | 0 |
| Prunus domestica | Plum | 1 | 1, 149 |
| Prunus dulcis | Almond | 1 | 11, 642 |
| Prunus persica | Peach | 1 | 1, 782 |
| Psidium cattleianum | Strawberry Guava | 1 | 50 |
| Psidium guajava | Guava | 1 | 144 |
| Psophocarpus tetragonolobus | Asparagus Pea; Goa Bean; Winged Bean | 1 | 102, 894 |
| Psoralea corylifolia | Babchi; Black Dot; Malaya Tea | 1 | 0 |
| Psoralea esculenta | Indian Bread-Root; Prairie Apple; Prairie Potato; Indian Turnip; Breadroot; Prairie Turnip | 1 | 7, 344 |
| Raphanus sativus | Radish | 1 | 4, 455 |
| Rehmannia glutinosa | Chinese Foxglove | 1 | 6, 000 |
| Rosmarinus officinalis | Rosemary | 1 | 5, 245 |
| Ruta graveolens | Rue | 1 | 0 |
| Sambucus canadensis | American Elder; Elderberry; American Elderberry; Sweet Elder | 1 | 7, 920 |