ratsbane

If his Lordship had sent me an infusion of ratsbane in the loving-cup, I should have taken it much more kindly at his hands.

For my own part, I would as lief they would put ratsbane in my mouth as the ‘excellency’ with which I am daily crammed.

It is the double-distilled extract of nux vomica, ratsbane, and adder's tongue.

"Doctor, that ere ratsbane of yourn is fust rate," said a Yankee to a village apothecary.