Read as
milligrams per
kilogram. Used to formulate doses of
drugs or other
substances that are relative to the
subject's body weight. For example, if I weigh 60
kg and want to take 50mg/kg of
GHB, I will take (50*60)=3000mg.
Measuring in mg/kg (or g/kg, etc) reduces the risk that heavier or larger people will show reduced reactions just because the drug is more diluted in their system. This is common sense -- tall,
musclebound people can
drink small,
slight ones
under the table even when alcohol tolerance and other
factors are held
constant.