<prompt> Certainly Lethal Dose of fluoride in case of children:1-1.5 grms1.5-2.5 grms2.5-5 grms5-10 grms  <response>: The Certainly Lethal DoseCLD of fluorides is 32-64 mg per kg of body weight i.e, approximately 2.5-5 gms of fluoride in cases of children and 5-10 gms, one single related dose, in case of adults. 