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For a bodyweight around 70 kg (155 lb.), the lethal dose of arsenic would be closer to a gram than 100 mg. Current Queue | Current Queue for Medicine | Medicine archives Try the links in the MadSci Library for more information on Medicine.
median lethal dose. The amount of a substance, bacterium, or toxin that will kill 50% of the animals exposed to it. Dose is usually calculated on amount of material given per gram or kilogram of body weight or amount per unit of body surface area.