False Positive for PCP. Please help.
- 20 Oct 2006 by gryphin
I am drug tested randomly by the person in authority over me. They have good reason to do so, as I do have a history of some drug use. However, I haven't done anything for a while. Not a huge, but decent amount of time. But now I have a big problem, I tested positive for PCP twice now and I have a third test coming very soon and I Have to show I have not used PCP, now or ever. I have never done PCP, in fact I have never even seen PCP. The closest I have come to it is hearing second-hand talk about smoking weed with it. So, if anyone knows and can tell me what might trigger a false postitve for PCP, please, please, let me know what they are. Or if you know somewhere I can look it up, or anything at all that might help. Thank you.
29 Oct 2006
On your false positive results showing PCP. you may have found some help by now, but I just didn't want you to think that you were the only one this had happend to. I'm 59 years old and had a false positive showing pcp. I've never even used pcp. I've heard of it, years ago, when I was a hippy. We called it angel dust, but even then didn't use it. I didn't even know what or how they used it now. I sure found out though. While I was in jail. For this was the second time it had showed up. After doing a lot of research on the net, I have found one thing in common. Most of the people in my boat have used a lot of antihistamines. Things like pseudoephdrine, Sudafed, and Chlorpheniramine Maleate. Any and all drugs containing DMX, and there are a lot of them, freguently show false positives for PCP. There are other things also, medications taken for Asthma can do it. Especially Primatene. I don't know how to prove it though.
There is a test that shows the DXM instead of the pcp, but try getting your PO to look into that one. I hope this at least gives you some info.
30 Oct 2006
PCP is phencyclidine. Maybe you had ingested phentermine? Maybe phenacimide? Phenathiazine? Just a guess.
Jesus Christ will help you through. -Betsy
21 Jan 2008
Are you taking effexor XR? I also had a false positive test for PCP at my pain clinic. I am on effexor XR an anti-depressant medication which has been known to show up as a false positive for PCP on many lower grade cheaper drug tests. Maybe this article can give you some help http://www.clinchem.org/cgi/content/full/48/4/676.
19 Aug 2008
I don't know how to help you except that i've just had a similar problem. I have had problems in the past with cocaine and weed, but have never touched pcp or any other hallucinogen. and I got out of treatment almost two months ago and am going on 5 months clean from everything, but on my last drug test, it showed positive for pcp. My therapist attributed this to the number and combination of antipsychotic drugs I'm on for my bipolar. I'm on lamictal, seroquel, provigil and vyvanse. oh and the vyvanse often tests positve for amphetamines. If you are on any of these, that may explain it, but i don't know for sure, i mean i'm not a professional or anything.
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