what medications cause a false positive on a drug screen for marijuana?
Yes, riboflavin is derived from hemp seed oil. hemp seed is the same substance that marijuana is.
No.
Yes, it can.
Certain medications, such as hydralazine, isoniazid, procainamide, and some anticonvulsant medications increase the chances of having a positive ANA test and biologic medications like Remicade, Humira, Enbrel can cause false positive results.
Zantac
Prenatal vitamins will not cause a positive drug screen.
Diabetes alone will not cause a positive drug screen.
Yes
YES! Search "phenylephrine and false positives"....you will get many websites listing many over the counter medications that can cause a positive drug screen. Phenylephrine, Dextromethorphan, & Guaifenesin...active ingredients in many cold remedies...will show positive for amphetamines
Absolutely it will.
Smoking marijuana.
If you use medications like Provigil, this will cause it to smell like marijuana. Otherwise, I would suspect a urinary tract infection.