Sulfamethoxazole-tmp Ds/possible Drug Screen False Positive

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I am taking this medication along with levothyroxine for my thyroid and xanax for anxiety. Is it possible that these drugs mixed together along with sudafed can cause a false reading for methamphetamines on a swab test?

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It is highly possible that it was just caused by the Sudafed. The Pseudoephedrine in some of their formulations has been known to cause false positives for various types of Amphetamines, including Methamphetamine, since it is actually a distant relative.

https:/­/­rxchat.com/­wiki/­Pseudoephedrine/­

https:/­/­rxchat.com/­wiki/­Bactrim/­

https:/­/­rxchat.com/­wiki/­Xanax/­

https:/­/­rxchat.com/­wiki/­Levothyroxine/­

https:/­/­rxchat.com/­wiki/­Methamphetamine/­

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Can sulfamethoxazole cause you to fail a hair follicle drug test for Methamphetamine?

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