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Can the numbing eye solution that is given in an opthalmologic eye exam cause a "positive" in a urinalysis?

I have not taken any drugs other than OTC pain medications for the last 5 years (this includes prescription or otherwise)...yet a recent 5-panel drug screen for a new job showed up "positive" for drug use. The only foreign thing that's been in my body in the month preceding the test is the numbing eye drops at the office of the eye doctor. What's the deal with this??? Does anyone know or have any ideas???

Asked By: Roberta - 9/23/2007
Best Answer - Chosen by Asker
A numbing solution that's often preferred for an eye exam contains cocaine, as cocaine's an extremely effective local anesthetic. Probably Pangolin could talk more about that, but I would imagine it would cause a urinalysis to be positive. If you get your opthamologist to sign something to this effect and you show it... More
Answered By: Mike D - 9/23/2007
Additional Answers (3)
The only way Cocaine is used is when other anesthetics are not helpful, which occurs in about 3% of the population. In case you did not know, Cocaine is a Scheduled drug, which means it is not highly recommended for use or has extremely limited medical uses... More
Answered By: Josh R - 9/23/2007
 
if you have taken a drug test then you have to list everything that you have been taking in the last 30 days or so that may effect the test . and I am thinking that Josh R has a very good point sometimes things we eat can make a false positive i.e. poppy seeds cakes or cup cakes and make at positive for opiates... More
Answered By: Tracie n - 9/23/2007
 
I think they usually use tetracaine (not cocaine) in eye drops. (Cocaine is used in nasal surgery, though.) Sometimes mistakes are made in the lab. Request another test.
Source(s):
Answered By: Pangolin - 9/23/2007
 
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