Concerta or methyphenidate will stay in your system for about two weeks for a low sensitivity UDS, if you are getting your sample sent to a laboratory for specific testing, it may take a month for the drug to have left your system. For example, I went to one doc and my UDS showed soma, I had only taken one three weeks prior.
So, the simple truth is... it depends on the test.
Please be careful with your intake of Concerta as it will certainly mess with your mind. I always called them mind speed. If you are having trouble concentrating on tasks, might want to ask your doc for help, if you already haven't. Just sayin'.
Peace and be careful,
- Concerta Information for Consumers
- Concerta Information for Healthcare Professionals (includes dosage details)
- Side Effects of Concerta (detailed)
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