PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 31554781-1 2019 BACKGROUND Pyridostigmine is a quaternary amine parasympathomymetic which inhibits acetylcholinesterase for the treatment of various conditions such as myasthenia gravis. quaternary amine 31-47 acetylcholinesterase (Cartwright blood group) Homo sapiens 83-103