title: Toxicities and the rates of penetration of O-ethyl-S-(2-dimethylaminoethyl)-methylphosphonothioate into the blood following different routes of intoxication.
abstract: Toxicities of O-ethyl-S-(2-dimethylaminoethyl)-methylphosphonothioate were determined by i. v. (17.0 microgram/kg), i.m. (23.6 microgram/kg), i. p. (54.5 microgram/kg) and p. o. (121.9 microgram/kg) administration to female rats. Following intoxication with this compound (42 microgram/kg) at these routes of administration, acetylcholinesterase activity in the blood was continuously monitored and half-times of inhibition in vivo were determined. It appears from a comparison of inhibitions in vivo and in vitro that only a part of the dose administered is effective to inhibit acetylcholinesterase in the blood vessel.
mesh_terms: D000110:Acetylcholinesterase / Q000097:blood; D000818:Animals; D005260:Female; D006207:Half-Life; D007700:Kinetics; D007928:Lethal Dose 50; D009946:Organothiophosphorus Compounds / Q000378:metabolism / Q000494:pharmacology / Q000633:toxicity*; D051381:Rats
chemical_list: D009946:Organothiophosphorus Compounds; D000110:Acetylcholinesterase