• N R Simkhada, K K Kafle, and P N Prasad.
• Department of Clinical Pharmacology, Institute of Medicine, Tribhuvan University Teaching Hospital, Maharajgunj, Kathmandu, Nepal. simkhadanabaraj@hotmail.com
• JNMA J Nepal Med Assoc. 2010 Oct 1; 50 (180): 300-2.

IntroductionPralidoxime are enzyme reactivator that are known to reactivate the phosphorylated acetylcholinesterase by binding to the organophosphorus molecule. The use of oximes in acute organophosphorus poisoning has been a controversial subjects for over two decades. This study was conducted with the objective to find out the estimation of serum cholinesterase and use of pralidoxime in organophosphorus poisoning.MethodsA prospective analysis of all organophosphorus poisoning cases presented at the Emergency Department, Tribhuvan University Teaching Hospital for seven months was done.ResultsOut of 26 cases about 60% of poisoning cases were monitored for pseudocholinesterase level. About 50% of them had pseudocholinesterase level within normal limit and 20% had less than 10% of normal value. Only 33% cases with pseudocholinesterase level less than 10% were treated with pralidoxime.ConclusionsThe initial dose of Pralidoxime used was 1 gm followed by maintenance dose of 500mg 6 hourly, the doses prescribed were less than WHO recommended doses.

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