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From: Harold D. Brandt, MD, FACP
Password: orange
Date: 03 Aug 2009
Time: 14:07:22 -0700
Remote Name: 68.96.159.132
I have a prospective employee with history of headaches. Her screen was positive for phenobarbital, but she is only taking tramadol, amitriptyline, frova, hydrocodone, and had a recent Synvisc injection. (I presume she had it with lidocaine or the like.) I can find no references to explain the phenobarb, and have never crossed this before. I know amitriptyline can cause some false positives as can the others, but none seem to cross to the barbiturates class, and there are no references that I can find to phenobarbital. Any thoughts from others?