7 Sep 2012
The effects of Ritalin wear off in four to six hours, but as for its half-life, it should be out of your system in 12 hours. If someone is testing you for drugs, they would have to perform a very specific - and expensive - test to find it in your system. Hope this helps. All the best,
- Ritalin Information for Consumers
- Ritalin Information for Healthcare Professionals (includes dosage details)
- Side Effects of Ritalin (detailed)
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