Sorry, I ran out of credit http://itu.sci.cu.edu.eg/hydrocodone-acetaminophen-medscape-3378.pdf tramadol acetaminophen medscape
  "We have previously provided USA Today with a plethora of data from a DEA Certified Lab indicating the absence of any amphetamine-like compound in Craze," Ullman said in an e-mail. "In light of USA Today's decision to ignore the data we have provided, we respectfully decline to comment for your story."