<prompt> Which of the following does not cross a blood brain barrierPralidoximeObidoximeDiacetylmonoximePhysostigmine  <response>: Ref-Katzung 11e p121 Pralidoxime or 2-PAM, usually as the chloride or iodide salts, belongs to a family of compounds called oximes that bind to organophosphate-inactivated acetylcholinesterase. It is used to treat organophosphate poisoning in conjunction with atropine and diazepam 