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Organophosphate poisoning is poisoning due to organophosphates (OPs). [4] Organophosphates are used as insecticides , medications, and nerve agents . [ 4 ] Symptoms include increased saliva and tear production, diarrhea , vomiting, small pupils , sweating, muscle tremors, and confusion. [ 2 ]
In the treatment of organophosphate toxicity, cholinesterase reactivators such as Pralidoxime reactivate inhibited AChE at peripheral nicotinic receptors.Since AChE mediates effects on both nicotinic and muscarinic receptors, cholinesterase reactivators are co-administered with muscarinic antagonists, primarily atropine.
Pralidoxime (2-pyridine aldoxime methyl chloride) or 2-PAM, usually as the chloride or iodide salts, belongs to a family of compounds called oximes that bind to organophosphate-inactivated acetylcholinesterase. [1] It is used to treat organophosphate poisoning [2] in conjunction with atropine and either diazepam or midazolam. It is a white solid.
Paraoxon is one of the most potent acetylcholinesterase-inhibiting insecticides available, around 70% as potent as the nerve agent sarin, and so is now rarely used as an insecticide due to the risk of poisoning to humans and other animals. Paraoxon has been used by scientists to study acute and chronic effects of organophosphate intoxication.
In rodent studies, TDCPP was found to have very low capacity to inhibit acetylcholinesterase, and it is considered to have low acute toxicity. [26] Animals that were given very high doses (>1 g/kg/day) exhibited clinical signs of organophosphate poisoning, including muscle weakness, loss of coordination, hyperactivity, and death. [7]
metronidazole – antibiotic against anaerobic bacteria; milbemycin oxime – broad spectrum antiparasitic used as an anthelmintic, insecticide and miticide; mirtazapine – antiemetic and appetite stimulant in cats and dogs; mitratapide – used to help weight loss in dogs; morphine – pure mu agonist/opioid analgesic used as a premedication
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Organophosphate insecticides are acetylcholinesterase inhibitors, which disrupt the transmission of nerve signals in exposed organisms, with fatal results. The risk of human death through organophosphate poisoning [33] was obvious from the start and led to efforts to lower toxicity against mammals while not reducing efficacy against insects ...