Quote from: eazy e on October 19, 2012, 04:57 amyeah I'm sure this has already been stated, but I'll put it in plain english for those who may be spun. levomethamphetamine is the main ingredient in vicks inhaler, and has little cns activity. racemic means it's a combination of lmeth and dmeth, both being stereo isomers which are basically molecular mirror images of each other.. I'm wondering does this mean racemic meth is half as potent as dextro meth?That depends on just what source you choose to believe (believe it or not). According to MDs, yes, it's weaker (not that I'm a doctor or anything, but from what I read). According to anecdotal evidence from users, some say yes, some say no. Some say it's stronger.Adderall is a mixture of 50-75% d-amp and 25% or so l-amp (in hydrochloride, sulphate, and sacharate salts). Supposedly every 20mg adderall has 15mg or 17.5mg of biologically usable amphetamines, whereas a 20mg dexedrine (pure d-amp) has 20mg biologically available amphetamine.This does not mimic my personal experiences with amphetamines, but who am I to argue with the good doctors? Basically, if it works like it's supposed to, d-amp is what you're after and is the good, happy, "thank God, I can actually focus on one thing for more than 12 seconds again..." stuff. l-amp is the body-load and a little of the speediness, from what I gather.l-METHamphetamine, supposedly does fuck all when you ingest it. It's so useless they really do sell it in pure form as Vicks decongestant inhalers, look at the ingredients (levomethamfetamine). Again, l-amp, not the meth variety, is more active and does more than clear your nostrils.