Here are some common examples: Over-the-Counter Medications: Ibuprofen (Advil, Motrin) Can sometimes cause a false positive for marijuana Pseudoephedrine (Sudafed) Can be mistaken for amphetamines Dextromethorphan (cough medicine) May trigger a false positive for opioids or PCP Prescription Medications: Antidepressants (such as Sertraline/Zoloft) May cause false positives for benzodiazepines Proton Pump Inhibitors (such as Omeprazole/Prilosec) Can lead to a false positive for THC ADHD Medications (such as Ritalin or Adderall) May be confused with methamphetamine Certain Foods and Drinks: Poppy seeds Can cause a false positive for opioids Hemp or CBD products May result in a false positive for THC Tonic water (which contains quinine) Can sometimes trigger a false positive for opioids Medical Conditions: Diabetes Some conditions can lead to false positives for alcohol Liver disease May cause errors in detecting substances Because many things can cause false positives, it is important to always confirm test results with a second, more accurate test

Ozempic *Results achieved at the highest allowed dose of each medication
For patients taking semaglutide who have not achieved desired weight loss, ensuring adequate dose titration to the maximum tolerated dose (2.4 mg weekly for Wegovy) and allowing sufficient treatment duration (at least 16-20 weeks) is essential before adding additional pharmacotherapy
It mimics a natural hormone in the body that helps control blood sugar levels and appetite
If you've recently started Wegovy or had a dose change, consider contacting NHSBT ahead of your appointment to discuss any implications
Abbasinejad tailors the medication regimen to support a broader lifestyle overhaul