Lady's Last Kiss

A mildly toxic poison that is utilized by Ladies of the Night under the ownership of the Houses of The Sacred Garden the morning after entertaining clientele that protect the drinker from bearing bastard highborns either as a contraceptive or as an abortifacient. It is a tightly kept and monitored trade secret amongst the guild as its ingredients are rare, difficult to cultivate, and requires skills across multiple trades and disciplines to properly brew as the resulting concoction is dangerous when done correctly, disastrous if done otherwise.