... I have been taking Concerta 54 mg for 2 years.For the last 6 months I have been given a urine screen test at my doctor's and it comes back negative for amphetamines. I also had a blood test done last month and it was negative. I KNOW I AM TAKING THE MEDICATION. Has anyone else had this problem?
Is it possible to test negative on urine and blood tests for amphetamines?
Question posted by lauralynn242001 on 10 May 2010
Last updated on 9 March 2017 by stunned2017
I tested negative and I take my adderall as scheduled twice a day my doctor dont believe me and dropped me as a patient???
Concerta does not show up pos on drug screens, I have been tested SEVERAL times and it always is NEGATIVE
yes but not concerta, lithium my daughter takes concerta that's why i am reading all of these i take lithium and i get blood taken and they said i dont take it i take 700 mg a day i dont understand it at all lol
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