Posted by cumulative on June 24, 2008, at 18:46:29
In reply to What's the half life of Ritalin?, posted by IAMtheWalrus on June 24, 2008, at 14:43:24
Yeah, 2-4 hours. The duration of effectiveness is often even shorter, as with dextroamphetamine's 10-hour half-life but typical 4-5 hour window of effect. The reason for this sort of thing is not completely known, but it may have to do with blood-brain-barrier mechanisms.
poster:cumulative
thread:836237
URL: http://www.dr-bob.org/babble/20080617/msgs/836276.html