Can certain over the counter medications or prescription medications cause a false positive for meth in a blood test? ## Information listed below is based on drug. Ask Erowid Question and Answer: Can Ritalin cause a false - positive for methamphetamine?. What can cause false positive test results for THC? An average drug test looks for concentrations of tetrahydrocannabinol (THC) above 20 to 50 nanograms per. October 2006 · Vol. 55, No. 10. CLINICAL INQUIRIES. From the Family Physicians Inquiries Network. What common substances can cause false positives on urine. Information and links concerning antibiotics, over-the counter drugs, and foods that can create a false - positive drug test result. Also offers links to articles. Sep 21, 2007 · Best Answer: Q: Can fertility medications such as Clomid, Serophene, Gonal-F, Follistim, Humegon, Pergonal, Repronex or Fertinex cause false positive.
The short answer is yes. I have been doing research on this subject, and have found several authoritative references to how protonix can cause a false positive for. Women who receive a false - positive mammogram result often suffer from long-lasting psychological effects, according to a new study. However, one doctor says that the. I am freaking out! I am a professional and just got a great job and moved 1500 miles to start it. I go in to take a urine drug screen and it comes back positive for.