It is possible. Anti-depressants , anti-psychotics, other CNS medications like Buspirone, Quinilone antibiotics may trigger false positives on a drug test. Some herbal products (especially unregulated ones) have been found to contain pharmaceutical drugs like steroids, stimulants (e.g., ephedrine), or sedatives — which can trigger a failed drug test.
Studies show morphine and codeine are derived from opium poppy seeds, the intake of relatively small amounts of poppy seeds may result in false-positives for opiates, including the consumption of poppy-seed cookies (having ~1 tsp of poppy-seed filling) or poppy-seed bagels.2 Additionally, the ingestion of foods containing hemp, such as hemp-seed oil, have resulted in positive marijuana UDS results, and ephedra-containing products may cause false-positive methamphetamine results.
Other herbal supplements may be less likely to cause false-positive test results. A study of gingko biloba, saw palmetto, St. John’s wort, ginseng, garlic, green tea, valerian, and cranberry did not cause any false-positive reactions.18 Similarly, herbal teas and drinks did not cause any false-positives.19 Carefully assessing patient use of these products can help minimize misinterpretation of UDS results.
https://www.uspharmacist.com/article/urine-drug-screening-minimizing-false-positives-and-false-negatives-to-optimize-patient-care