Anticholinergic: low potency antipsychotics, oxybutinin, ipratropium Cholinergic: ACh antagonists (atropine, scopolamine), AChEIs (organophosphates) Opioid: Morphine, heroin, hydromorphone, etc Sympathomimetic: epinephrine, cocaine, amphetamine (Aderol), methylphenidate (Ritalin) Sedative-Hypnotic: Benzodiazepines, barbituates, “Z-drugs” (zopiclone, zolpidem), antihistamines