MeSH definition : The dose amount of poisonous or toxic substance or dose of ionizing radiation required
to kill 50% of the tested population.;
MeSH synonym : dose 50, lethal; ld50;
MeSH annotation : almost never IM; do not coord with /mortal in exper studies; DF: LD 50 or LD50; usually NIM; do not coordinate with /mortal in experimental studies;
The dose amount of poisonous or toxic substance or dose of ionizing radiation required
to kill 50% of the tested population.
http://agence-prd.ansm.sante.fr/php/ecodex/extrait.php?specid=67411667 2013 France summary of product characteristics botulinum toxins, type A lethal dose 50 powders multiprotein complexes injections
--- http://agence-prd.ansm.sante.fr/php/ecodex/extrait.php?specid=67540690 2012 France summary of product characteristics package leaflet lethal dose 50 powders injections