I take a generic of dexedrene called dextroamphetamine.  I too have been turned down from 2 jobs in the past year because of a positive for both meth and amphetamines showed up on both and was told meth will show up  in both meth and amphetamines test but amphetamines will only show up only in amphetamines category.  I tried crank once when i was in high school and pulled the hair out of my head (just kidding) when i was up for 3 days straight and never did that again so i am confused as to why i test positive for meth.  When I questioned testing agency about the false positive i was told that they would send my other vial of urine to a different place to be tested for $250(my cost).  Well i dont claim to be a genius or chemist  or master urine specialist but im pretty sure that if we take a bottle of coca cola and pour it in too cups I could pretty much send that anywhere and it will come up coke not pepsi. when i was testing prescription drugs(provigil,rittalin,etc)   to see wich one worked best for my hyper somnia i was prescribed desoxyn which when i picked up at the pharmacy i was surprised to see the label which said methamphetamine generic for desoxyn.  however that was a good three years ago and i didnt finsihed the script because it had made me very pissey and easily annoyed.  I think my next step is to hire a lawyer and sue drug testing agency for 9 months salary of a new jersey union fitter.  Having served on jury duty 3 times now i realize lawyers can find expert witnesses on everything somewhere and let the jury and judge sort it out. 

If you or anyone you know has had a false positive drug screen for meth and wasnt using meth at the time. If you are prescribed adderol or any add or adhd medication, than that is what triggered the false result for meth. Myself along with many others have dealt with this very issue and so forth I have typed up a petition that Im sending to the highest offices in order to get something done about this havoc issue. Awareness is the main key and our lives depend on the outcome of drug screens.

bring the prescription to the attention of whoever is arresting you. a valid rx shows that you prescribed the med and a public defender could advise you of your rights.

I too am on adderall and am having the same problem-so much that they are trying to revoc my probation. I have not used meth for almost 3 years but my urine tells a different story. I realize that methamphetine metabolizes ato amphetamine and amphetamine metabolize to amphetamine. They have sent some of my tests to another lab and the results are 5000 nanagrams of meth and 5000nanagrams of amphetamine. I am confused to my eye this would be an unconclusive result-however they tell me this means I am dirty or am abusing my perscription. But by them saying that either I am abusing my perscription this makes me think that what I believe is true. I have been takiing adderall for almost 5 years now and I imagine there's some sort of chemical reisidue built up in my system. I'm not a chemist let alone knowledgable enough to try to defend myself. I just know I have not been using meth for 3 years period. The only time I ever tested clean for meth or amphetamines is when I came off of my medication. I was clean twice according to the test standards,however I cannot leave my life with untreated adhd. I cannot catch myself, let alone hold a job of any sorts. The only way I will give up my adderall is if I am court ordered to do so. Help is what I am asking for.

 I too am having this same problem. I have been back on my adderol for onr year and just failed a drug test for meth! Now my job career is in danger. I went to. ask doc web, and he said "Thats pretty crazy because they can cross react on the test pallate VERY EASILY. That would not stand up in court at all. you obviously are taking an amphetamine and methamphetamine is only different by one methyl group and the test isn't that sensitive anyway. I would talk to a lawyer if they really want to fire you over this, and let them know that you intend to do this". Then he sent "The active ingredient in adderol will show up positive for methamphetamine! They cannot fire you for taking a drug that is perscribed to you"! I hope that this information might help you in some way.

I'm pretty sure that's backwards...

I'm a Med Tech and recently looked this up due to my taking Adderal. 

Our test is a Syva RapidTest d.a.u. which includes Methampletamines (but NOT amphetamines.) It doesn't pick up my Adderal. 

The accompnaying test info states that Methamphetamines are metabolized and excreted in the urine as amphetamines. HOWEVER, 10-20% of the Meth is NOT changed to amphetamines and that's what the test will detect.

Tom L.  MT(ASCP)

since you're a med tech maybe you can answer some questions for me. I'm going to be taking a drug test in a few days. In December I took a few pills of Aderall will they show up in a test now after 2 months? and then there is a question of hydrocodone I have a prescription for it now But i was using it long before I got the prescription will that be something they can check for how much is in your system? I would really appreciate an answer as I am sweating it out over the drug test  thank you

you say amphetamines metabolize as meth amphetamines and  a guy in this same forum says its the other way around, which is it

Yes if u read my post right above urs from 1-25-11, I describe how Ive recently been done by the court system due to falsely failed drug screens. I dont know exactly why Adderol is indeed showing up as meth on a drug test but im living proof that it is as well as many others that has dealt with this same issue. I mean there is people out there that is losing their jobs, going to jail, and not to mention just flat out embarrased from the false results. Im still on a hard core mission in researching any and all info I can to give and make some kind of sense out of this havoc issue. Of course I feel as if the legal system could care less about  determining why it is or believeing it truly is false results b/c a failed drug test to them means more money in their pockets, so its almost lik fighting a losing battle. Now if adderol wasnt a behavioral medicine I might could understand them not having any concern to how it falsely failing for meth would effect the average joe. But a person that has been diagnosed with adhd with out a doubt needs this medication in order to lead a normal life. And so forth, its like a slap in the face when whosoever conducts a drug screen and determines it to be a positive screen for meth w/o considering the adderol the subject has been prescribed treating behavior issues. Exspecially if that subject is found guilty and punished for the falsely failed drug screen. I pray there is someone out there reading or is made aware of this life destroying fact who has some authority and does something/anything to establish why its shows up, how it can be fixed, and most certainly put an end to the ones who hold office within criminal law who are taking advantage of the situration by getting rich off the ones who are in drug court, court refferals, or on probation. Im sure there is people out there that abuses this medication, b/c for every drug theres abusers but in the case were a person clinically needs it, well in my opinion they shouldnt be treated any different than someone who has to take insulin or heart meds in order to stay alive, So yes ADDEROL shows on (a) Drug Screen as AMPHETAMINES and METHPHETAMINES. Ive found information informing of a certain test that has to be conducted in order to determine that it is not Meth. So I guess in reality its up to the test conductor to have the final judgement and say on whether or not you are a METH HEAD or somebody thats just trying to live as normal as you can even if it takes a medication to help you do that. 

Demand a hair folllice test!!!!

"I have a script for Desoxyn. My probation officer is refusing to recognize my prescription as methamphetamines and says the mcgs or msgc proves that I was on street drugs and revoke my probation throwing me in jail.

Can a UA tell the difference between Desoxyn and street meth??

Is there a DEFINITE way to prove the difference between my script Desoxyn and the street drug????

Are there any molecules or metabolites or any factor than they can point at and say this was street drug and not desoxyn~ from a UA?

I ask in three different ways hoping someone understandsand will answer with facts, plz ty"

I am in a very similar situation with probation.  What your PO is referring to is the quantitiative component - meaning you have a much higher amount of d-meth in your urine than your prescription can cause.  Other than that, I don't know of any isomeric tests that can confirm street meth from Desoxyn, HOWEVER street meth is likely to be variably racemic - meaning L and D isomers, whereas Desoxyn may have a known range of D.

One tip: the day before your UA, mega-dose on Vitamin C (I take 1500mg a few times a day).  This makes your urine acidic, and you piss out like 80% of the metabolites and drug.

The day of the test, take about 3 tablespoons of baking soda in about a pint or half pint of water.  Drink it - it'll taste horrible and give you the runs, BUT it will make your urine alkaline (but not TOO alkaline).  Urine at pH of about 8-9 will contain less than 4% of the meth and metabolites (studies show only 1%).

This trick will help you stay within the range of the expected amount of meth in urine.

I received a prescription for desoxyn a few years back for hypersomnia and wah shocked when i picked up at pharmacy and label read Methamphetamine generic for desoxyn.