Which of the following does not cross a blood brain barrier
Ref-Katzung 11/e 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
Pralidoxime
Obidoxime
Diacetylmonoxime
Physostigmine
Autonomic nervous system