and his breath pretty well antidoted with store of the vine-tree-syrup.

The ninth edition entry, reprinted in Slate, also recommends the use of “Harts-horn.” Harts-horn, according to Merriam-Webster, is an “American pasqueflower.”  According to “Edible and Medicinal Plants of the West” by herbalist Gregory L. Tilford, pasqueflowers were used by Native Americans to induce abortions, or speed up childbirth.  

Tennent’s handbook prescribes angelica, an herb known to be an effective abortifacient in the early stages of pregnancy for thousands of years, and which was frequently recommended across early modern herbal books.