I took these products for week and a half before i took a drug test. Sudafed was from behind counter and this was taken twice a day.
9 Mar 2012
Pseudoephedrine which is the active ingredient in Sudafed and other cold products (and now has to be bought from the pharmacy counter because it is a product they use in the production of methamphetamine and carries limits on the quantities that are bought) can sometimes cause a positive for methamphetamine on urine drug screens. A more sensitive test like GC-MS test can confirm a false positive. The more sensitive tests can detect the difference in pseudoephedrine and methamphetamine.
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it would be the sudafed that is behind the pharmacy counter. this sudafed is one of the many ingredients used to manufacture meth.
1 answer • 1 Apr 2010
... showing false positive for meth?
2 answers • 26 Sep 2010
Could Cheracol or Sudafed Maximum Strength cause you to have a FALSE POSITIVE ON A DRUG SCREEN?"
1 answer • 17 Feb 2011
I can get any relief from this cold... just wanted to know if there is any harm in taking Sudafed around 7:00 pm and then taking NYQuil around ...
1 answer • 11 Jun 2011
him nyquil and robitusin chest and cold will he come up hot for meth or any thing else in his ua
1 answer • 15 Nov 2013