or hell, just atropine pill would probably work. You could get some lomotil (diphenoxylate 2.5mg/atropine .25mg). It's fairly easy to get form the doctor for IBS-D type stuff. It's a souped up loperamide. Diphenoxylate is an analogue of pethidine and does cross the BBB. Same dosage guideline as pethidine, approximately 50-100mg. Included atropine to discourage abuse, but that may open those eyes up a bit. Just thinking out loud.