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A member asked:
If i take benadryl (diphenhydramine) a day after i got the tb test will it interfere with it? (make it positive/negative)
5 doctors weighed in across 2 answers
No effect: The reactivity of the tuberculin test relies on immune factors not allergic responses. Benedryl will have no effect on that process.
Answered 4/7/2020
4.9k views
Thank
No problem: The TB test checks for an antibody response to proteins from the bacteria. Medications won't interfere with that.
Answered 7/24/2019
4.9k views
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