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View Full Version : Pharmacology - half-life??


primal440
13-10-2005, 19:12
what exactly is a drug's half-life? common sense tells me its the time the drug stays in your system (plasma blood levels and shit), but then, why called half-life?

PsyDefects
17-10-2005, 09:50
a drug's half-life is the time required for half the amount of the drug to be eliminated from the body.</font>