My daughter takes Focalin XR and is looking for her first job. She doesn't want her employer to know about the focalin. I've advised her to disclose it but she will not. In order to help the best I can, how long will she need to be without it before it will not show up in her drug test?
According to the drug guide, the half-life of Focalin XR is 2 - 4.5 hrs., which means it could stay in the system for five to six times that, or up to 27 hrs. The half-life of medications does depend on a person's metabolism and other health factors, so it's not an exact science.
As long as your daughter has a legitimate prescription for the medication she really shouldn't be concerned about disclosing it for the drug test. It will be far worse for her if she doesn't disclose it and it shows up. Here is a link to an article that might help put her mind at ease: "Passing" Those Drug Screenings