What Causes False Positive Results For Methamphetamine While On Sudafed-12-Hour?

Posted on Wed, 15 Feb 2017

Medically reviewed by Ask A Doctor - 24x7 Medical Review Team

Wed, 15 Feb 2017 Answered on

Thu, 23 Mar 2017 Last reviewed on

Question : I'm looking for a second opinion the doctors diagnosed me with a 2 x abscess located in the right cheek bone it had swollen twice the size in two days the gave me a shot of sulfamethoxazole-trimethoprim 800-160 oral tablet and 1GM ceftriaxone sodium injection I left the hospital cause it was to big to XXXXXXX and was told to take meds until gone during witch the pressure was wondering up to my eye and brain not being XXXXXXX to sleep I asked if I could take over the counter meds for sleeping and breathing
I bought sudefen 12 hrs Alcatel and and ibuprofen why did I test posted at work for methanfedamines

Answered by Dr. Ivo Ditah (7 hours later)

Brief Answer:
Sudafed gives false positive test for methamphetamines!

Detailed Answer:
Hi,

I have reviewed your information fully. The positive test is caused by Sudafed. This drug is well known to cause false positive tests for amphetamines. You should talk to your doctors about this so that they can know what the cause is and not tag you as someone who abuses drugs.

I hope this enlightens and guides you. I wish you well. Stay positive and keep me posted on the outcome of this finding after further discussions.

Kind regards

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar