| Drug | Effect |
| Agrimony | Hypotensive, in vivo |
| Asafoetida | Hypotensive, in vivo |
| Avens | Hypotensive, in vivo |
| Calamus | Hypotensive, in vivo |
| Celery | Hypotensive, human and in vivo |
| Cohoswh, black | Hypotensive, human |
| Cornsilk | Hypotensive, in vivo |
| Cowslip | Hypotensive, then hypertensive in vivo |
| Devil's Claw | Hypotensive, in vivo |
| Elecampane | Hypotensive, in vivo |
| Fenugreek | Hypotensive |
| Fucus | Hypotensive |
| Fumitory | Hypotensive, in vivo |
| Garlic | Hypotensive, in vivo |
| Ginger | Hypotensive |
| Ginseng, Panax | Hypotensive, human and in vivo |
| Goldenseal | Hypotensive, alkaloid effect |
| Hawthorn | Hypotensive, in vivo |
| Horehound, white | Vasodilator, oil |
| Horseradish | Hypotensive, in vivo |
| Mistletoe | Hypotensive, in vivo |
| Nettle | Hypotensive, in vivo |
| Parsley | Hypotensive, in vivo |
| Plantain | Hypotensive, in vivo |
| Pokeroot | Hypotensive, in vivo |
| Prickly Ash, northern | Hypotensive, in vivo |
| Prickly Ash, southern | Hypotensive, in vivo |
| Sage | Hypotensive |
| Shepherd's purse | Hypotensive |
| Squill | Vasodilator, oil |
| St. John's Wort | Hypotensive, in vivo |
| Vervain | Hypotensive |
| Wild carrot | Hypotensive, in vivo |
| Yarrow | Hypotensive, in vivo |
