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Re: AMPHETAMINES and ART » Paulbwell

Posted by Alejandro on April 29, 2005, at 7:16:49

In reply to Re: AMPHETAMINES and ART » vivi, posted by Paulbwell on April 28, 2005, at 22:11:30

> Benzedrine was the first Amphetamine Levo Amphetamine, MUCH less centrally stimuling than DEX.
> Adderall is a mix of L and D Amphetamine

I think that Benzedrine is racemic amphetamine, i.e., the original compound, which includes l- and d- optical isomers (not just l-). Racemic amphetamine is the status of the substance if you haven´t isolated one of these isomers. We can compare Benzedrine with Adderall, the later being a mix of salts:

* 75 % racemic amphetamine (that is, l- AND d- not isolated isomers)
* 25% dextroamphetamine

Here you have,

Adderall:

* 37,5 % levo-amphetamine
* 62,5 % dextroamphetamine

vs Benzedrine:

* 50 % l-amphetamine
* 50 % d-amphetamine

vs Dexedrine:

* 0 % l-amphetamine
* 100 % dextroamphetamine

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poster:Alejandro thread:486940
URL: http://www.dr-bob.org/babble/20050428/msgs/491361.html