{"id":"iv-neostigmine-methylsulfate-atropine-sulphate","safety":{"commonSideEffects":[{"rate":null,"effect":"Muscle fasciculations"},{"rate":null,"effect":"Increased salivation (despite atropine)"},{"rate":null,"effect":"Bronchospasm"},{"rate":null,"effect":"Bradycardia"},{"rate":null,"effect":"Nausea and vomiting"},{"rate":null,"effect":"Abdominal cramping"}]},"_chembl":{"chemblId":"CHEMBL211471","moleculeType":"Small molecule","molecularWeight":"334.39"},"_dailymed":null,"mechanism":{"_ai_source":"claude-haiku-4.5","explanation":"Neostigmine methylsulfate is a reversible acetylcholinesterase inhibitor that increases acetylcholine concentration at the neuromuscular junction and autonomic sites. 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