The brain-to-blood ratio, or brain–blood ratio, is a statistic in pharmacokinetics defined as the ratio of a drug's brain concentrations relative to its circulating blood concentrations. It is a measure of the ability of a drug to cross the blood–brain barrier and exert effects in the central nervous system.
The brain-to-blood ratio, or brain–blood ratio, is a statistic in pharmacokinetics defined as the ratio of a drug's brain concentrations relative to its circulating blood concentrations. It is a measure of the ability of a drug to cross the blood–brain barrier and exert effects in the central nervous system.
Source: Wikipedia "Brain-to-blood ratio" · CC BY-SA 4.0
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