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About Eric Brandt
Expertise
I am a practicing pharmacist.On my drug information website, I have answered hundreds of questions to date. The articles posted on my site include Parkinson`s disease. depression, menopause, diabetes, sleep and aging, congestive heart failure, calcium channel blockers, thyroid hormone replacement therapy, ADHD, multiple sclerosis an more.

Experience
I have experience in retail as well as hospital pharmacy pracice. Currently working in a hospital pharmacy. I am experienced in drug information. Over the last 6 years I have developed a successful web site for drug information.

The addressfor my drug information website is http://www.druginformation.bc.caThere you can read articles on varios areas of health interest. You can also leave me questions which I will personally answer. I also have a free health information newsletter called The Caplet. To subscribe send e-mail to thecaplet-subscribe@topica.com
 
   

You are here:  Experts > Health/Fitness > Pharmacology > Pharmacy > Positive urine test that is wrong

Pharmacy - Positive urine test that is wrong


Expert: Eric Brandt - 4/6/2009

Question
I have Periphal Neuropathy and take Endocet,Fentanyl patch and Lamotrigine. I took a urine test at the pain management cener I go to and today she said I came up positive for Morphine. I only take what is prescribed to me and have for 8 years.I took another test today but I am very upset with the positive for Morphine!Would any of the medications I'm taking make me be positive for Morphine? This is a new Doctor I'm seeing but the first urine test I took for her was fine so I don`t understand?

Answer
Hi Michelle,
Endocet contains oxycodone. One of the metabolites of oxycodone is oxymorphone which is related to morphine. The lab test likely can not differentiate between this substance and morphine. Check with the lab that did the analysis to confirm my explanation.
Thank you for using Allexperts
Sincerely,
Eric Brandt, B.Sc. Pharm


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