Sharon Says:
Lidocaine Cocaine False Positive
Updated5 Replies
1
Can Aspercreme with 4% lidocaine in it cause you to fail a drug test for cocaine? Could a patch you can buy over the counter with Lidocaine in it cause you to fail for cocaine as well?
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Peggy Says:
I use lidocaine 5% occasionally and I have tested positive for morphine. Also hydrocodone 10s and cough syrup with hydrocodone in it for copd. Will the patches cause the morphine to show up as I dont use any drugs other than prescribed?
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Peggy Says:
My pain management doctor focused on the morphine that showed up on my test in december. I do not nor have I ever used morphine or cocaine, nor any other drugs only prescribed by doctors. I had hand surgery which they used morphine. What the hell is wrong with these doctors? He looked at me and said how are you getting morphine. I showed him the surgery papers and he walked out. I have never seen morphine. He also said Fibromyalgia is not a proven ailment. I told him walk in my shoes.
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JMJ Says:
Re: Peggy (# 3) 
Peggy Your false positive is the number one reason I have dug my heels in and refuse to go to pain management. That crap happens very often, not rare. Even at my PC doctor, my urine is tested. I use benadryl occasionally for sleep. That is known to cause false positives for benies. I must maintain my med strength to a minimum, so she will continue to treat me. I expect that to be cut off, but that maybe a while down the road. Or she could refuse this upcoming script. So sorry you have been put in this position.
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Peggy Says:
Re: JMJ (# 4)
Thank you.my primary doctor took me off without explanation.im too sick of their attitudes.i took only what they gave me.im on gabapention which is basily an aspirin. They need to check facts on cocain a nd other false readings in meds.
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