After accepting a better offer, she becomes a member of a gang of robbers, acting as a decoy to drug and rob wealthy men's money, by putting Scopolamine in their drinks and then luring them into a cab.
Anticholinergic agents such as Scopolamine (Hyoscine) are used as anti emetics as they relax smooth muscle and reduce gastrointestinal secretions by blockade of muscarinic receptors.
He was the inventor of the popular antihistamine diphenhydramine (Benadryl), which he first made during a search for synthetic alternatives to scopolamine.