| Drug | Effect |
| Agrimony | Activity in vivo |
| Artichoke | Reputed action |
| Boldo | Irritant oil |
| Broom | Reputed action |
| Buchu | Reputed action |
| Burdock | Reputed action |
| Celery | Reputed action |
| Cornsilk | Human activity |
| Couchgrass | Activity in vivo |
| Dandelion | Activity in vivo |
| Elder | Activity in vivo |
| Guaiacum | Reputed action |
| Juniper | Reputed action; terpinen-4-ol |
| Pokeroot | Activity in vivo |
| Shepherd's purse | Activity in vivo |
| Squill | Activity in vivo |
| Uva Ursi | Reputed action |
| Yarrow | Activity in vivo |
