Benz had been known to improve Parkinson’s symptoms, mainly as a muscarinic M1 antagonist, as well as a dopamine reuptake inhibitor (DRI), which blocks the action of the dopamine transporter [DAT, also known as solute carrier family 6 member 3 (SLC6A3)] [23,24]. The gene discussed is SLC6A3; the disease is Parkinsonism.