Does Benadryl cause false positives?

[frank23m23m]

subbing with wifes urine. She is totally clean but takes vitamins and benadryl for her allergies, could this cause a false positive?

frank23m23m Reviewed by frank23m23m on 11-23-2009. Does Benadryl cause false positives? subbing with wifes urine. She is totally clean but takes vitamins and benadryl for her allergies, could this cause a false positive? Rating: 5