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/ˌniː.əˈstɪɡ.miːn/ · noun
(pharmacology) An anticholinesterase drug used in the form of its bromide C₁₂H₁₉BrN₂O₂ or a methyl sulfate derivative C₁₃H₂₂N₂O₆S especially in the diagnosis and treatment of myasthenia gravis and in the treatment of urinary bladder or bowel atony..
Use neostigmine when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Neostigmine means (pharmacology) An anticholinesterase drug used in the form of its bromide C₁₂H₁₉BrN₂O₂ or a methyl sulfate derivative C₁₃H₂₂N₂O₆S especially in the diagnosis and treatment of myasthenia gravis and in the treatment of urinary bladder or bowel atony..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use neostigmine where its definition matches the intended context.
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