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    What causes false positive test results for Methamphetamine?

Posted on Thu, 26 May 2016 in Smoking and Alcohol Addiction
Question: My husband tested positive at his pain management clinic in February for methaphanphedemine. He is 64 years old and has been on disability for 23 years from General Electric because of 2 rotator cuffs that cannot be repaired/. He has bad numerous surgeries, botox, nerve blocks, physical theraphy, etc. We retired and moved from XXXXXXX to our summer house on new river 2 years ago. He started out going back to XXXXXXX but it became impossible as the pain worsened. He started out on Fenenyl patch and 30mg of oxycodone 5 times per day. I could not make him change the patch because he said it made him feel funny and his heart raced and hurt. They changed him to 3 oxycotin 30mg. each per day and 5 oxycodone 5 times per day. He has been on that for about 15 years. Since we moved here he has torn his med???floating under his knee cap and his leg locks. We have a child, we were probably to old to adopt from Russia, but he is the love of our life, We adopted him at 1 yr. old, and he is 17 now and is still in school and I could not take him 5 hours away and XXXX cannot drive that far Here they have pain management clinics that only give out medicine. Before we could obtain an appointment he became so sick, not just withdrawals but from the pain level, I took him to the emergency room where they contacted his dr. The dr. said they did not usually give that much medicine in the ER but he would give him 3, 40mg, oxycotin and 3 oxycodone. When we saw the pain clinic dr. he prescribed the same. It was not enough because as one gets started and later in the day when it leaves, I give him his meds that I keep locked in the safe, and I am the only one with the code. When he first was prescribed, he dd not want to take it because he was afraid he would become addicted. He asked me to join him at the dr. before he filled the prescription. His dr. told us both that his body would become addicted but warned he should never take more than was prescribed. After about 3 years, he asked me for an extra because he was in pain, but I did not give it to him.because you have a finite number of pills and XXXXXXX amount of pain. I called his dr and told him the story and ask that he talk to XXXX at his next appointment in 3 months. He did and XXXX has never requested additional medicine. His dr. even asked him how he controlled it when none of his other patients did. XXXX said, you know my wife, and I would never want her disappointed in me. Now we see a pain clinic dr. who did not even review his history of injuries and MRI's, cat scans, theraphy, etc. even though I had everything including dr. notes, which I had put in a nice binder, in order so it would be easier to follow. He didn't even review it but gave it to an assistant to file away. Now they said his test t came back positive for methaphine. I nor he know how that could happen. He has always passed the tests and the only meds that changed were natural vitamins and he takes 2 Claritin D tabs per day since our daughter, also a dr. in MO was here in Dec. He doesn't go anywhere but take XXXXXXX back and forth to school without me. I never give him extra medicine.Since he had 7 teeth pulled and 22 surgerical removed three weeks after he was given the pain meds. (He requested the dr. change his meds to something his insurance would cover) They changed him to morphine timed release at the same mg. which is not nearly as strong. He planned on changing back when he next saw his dr. but now the dr. won't see him because of the test. He has never in 23 years requested an increase in mg. even though he has built up a tolerance. He is a very quiet person and is just greatful for the help. I, on the other side, think it is a cruel punishment for something he didn't do. The surgeon that removed his teeth hit his sinuses and he is still severely infected after 5 weeks and they keep changing antibiotics but cannot give him pain medicine because of the pain clinic. My husand would not even request because he won't speak up to drs. I think it is better when they know everything. Both of us used the same doctors for at least 25 years before they retired or moved. We never leave them, they leave us. I just am at the end of my rope and the clinic will not see him. Any suggestions?
I looked up methaphine and it said you have to make it. It is not the type of medicine XXXX could even take according to one of the drug sites because it would cause him additional pain. I just don't understand, please help please excuse spelling. XXXXXXX XXX XXXXXXX
Answered by Dr. Ashok Kumar 3 hours later
Brief Answer:
It may be false positive test

Detailed Answer:
Thanks for using Healthcaremagic.

I read your query and understand your concerns.

I believe your point about testing positive for meth amphetamine as it is possibe without taking meth amphetamine to get positive result on blood test.

There is long list of drugs and over the counter medications which can show positive result for meth amphetamine due to similar structure of them.

To find out the likely culprit I request you to post details of all medications he received during the week when he was tested positive. Please include all prescription as well as non prescription medications received by your husband.

I will be glad to assist you.
Thanks and regards.
Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
Follow up: Dr. Ashok Kumar 10 hours later
I can't remember what medicine he took the week before. He always takes 2 Clariton D's each day when the weather starts to change. He probably started that around February. Also, he drinks coffee and sometimes drinks an energy drink. That is about all he takes that would stimulate him. He hurts a lot even from too much coffee. The pain keeps him from sleeping at night and he always feels bad. I wish he was healthy enough to drive five hours so he could keep seeing the same 2 doctors that he started with 23 years ago. This new doctor doesn't care and expects him to go without his medicine for over two months. He then has to visit an abuse psychologist and then has to wait another month before this pain doctor will see him again. He has been on these meds for over 23 years without a break and now has to suddenly stop after major dental surgery. The dentist said he would normally give him strong pain medicine but he can't because of the pain clinic doctor. When they extracted his top teeth, they tore his sinuses. He has hurt so badly and doesn't know what to do. We have never had anything like this to happen.
Answered by Dr. Ashok Kumar 1 hour later
Brief Answer:
Claritan D could result in false postives

Detailed Answer:
Thanks for reverting back to me.

I revewed the provided details and like to inform you that there is long list of medications which can result in false postive blood test for methamphetamine.

In your list I feel Claritan D is culprit medication as it contains pseudoephedrine and can result in false positive test for methamphetamine.

I think it is time for you to convince this doctor about the possibility of false positive test and resort for high level testing rather than simple blood testing which is not error free.

I hope this helps you.
If you have more questions feel free to write back to me.
Thanks and regards
Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
Follow up: Dr. Ashok Kumar 20 hours later
Hi Dr. Kumar: The only other medicine my husband takes is Zantac for upset stomach. Could Clariton D and Zantac cause a false positive. The test was a urine test and these are the only medicine that has changed since he was tested a year ago. thanks XXXXXXX
Answered by Dr. Ashok Kumar 2 hours later
Brief Answer:
clariton D can cause false positive

Detailed Answer:
Thanks for follow up.

As communicated earlier Clariton D can cause false positive in both urine as well as blood test although no such reports available for zantac.

I hope this clarifies.
If you have more questions feel free to contact me when required.

In case there are no more questions please close the session and give your valuable feedback.

Thanks and regards.
Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
Answered by
Dr. Ashok Kumar


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