What combinations of over the counter drugs may combine and show up in urine as prescription drug?
- 31 Aug 2009 by Liela
- drug test
I had a urine test that came back positive for butalbital; but I have never heard nor taken the drug in my life. What may cause this to read positive for something I did not take?
6 Sep 2009
Butalbital is an ingredient of some prescription painkillers such as Fiorinal and Fioricet.
If you could list the drugs you were taking, we can investigate further.
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