tokens: The rats received AChE reactivator pralidoxime - 2 - chloride ( 2PAM ) ( 30 . 0 mg / kg BW ) , anticonvulsant diazepam ( 2 . 0 mg / kg BW ) , A ( 1 ) - adenosine receptor agonist N ( 6 ) - cyclopentyl adenosine ( CPA ) ( 2 . 0 mg / kg BW ) , NMDA - receptor antagonist dizocilpine maleate ( + - MK801 hydrogen maleate ) ( 2 . 0 mg / kg BW ) or their combinations with cholinolytic drug atropine sulfate ( 50 . 0 mg / kg BW ) immediately or 30 min after the single SC injection of DFP .