Can Zantac cause false positive THC urine screening?

Everybody's body reacts different to everything. The reactions that take place may stimulate different receptors and release a slightly altered chemical that stimulates receptors that are checked in certain types of drugs test. I know from first hand experience that Omeprazole(prilosec) can test positive for thc. But also be aware that a false positive can be from kidney/gallbladder malfunctions to.