Pharmacology Autonomic nervous system 692f7ce0

Neostigmine is not able to cross blood brain barrier because of its

Primary structure

Secondary structure

Teritiary structure

Quaternary structure

High-Yield Explanation

Quaternary ammonium compounds are water soluble and thus cannot cross blood brain barrier neostigmine is a quaternary derivatives where as physostigmine is a teritiary amine Ref-KDT 6/e p101

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Neostigmine is not able to cross blood brain barrier because of its

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