Does anticonvulsants show up in. a drug test?

Depends: It depends upon the TESTER. They will usually dictate to the lab exactly WHAT drugs to look for. Anticonvulsants don't really make it into the list of No-No drugs that most employers don't want to see such as marijuana, cocaine, opiates, valium, etc. They are usually NOT screened for in routine testing for generic drug tests requested by courts or employers.