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Re: stimulants: tyrosine, phenylalanine, dexedrine » andys

Posted by Larry Hoover on August 3, 2003, at 21:50:59

In reply to Re: stimulants: tyrosine, phenylalanine, dexedrine » Larry Hoover, posted by andys on August 3, 2003, at 16:15:13

> Lar,
> I just wanted to confirm my understanding that there’s no problem taking the tyrosine and phenylalanine together, correct? (I had it in my head that they competed at some level, so should be taken apart, which led to all my questions on the first posting).
> Thanks,
> Andy

They'll compete for access to the transporter across the blood-brain barrier, so it does make sense to take them separately, if only for cost-effectiveness.

You'll need somewhat more phenylalanine to produce an equivalent amount of dopamine from a particular dose of tyrosine, as PA has more products arising from it. But that's exactly why I usually advise using the racemic PA, called DLPA. Those other products can have beneficial effects, too.

Lar

 

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poster:Larry Hoover thread:246486
URL: http://www.dr-bob.org/babble/20030802/msgs/247906.html