A 18-year-old male asked:
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what anti histamine is strong enough to stop methacholine thats over the counter? benadryl (diphenhydramine)? allegra? zyrtec?

1 doctor answer
Dr. Al Hegab
Dr. Al Hegab answered
39 years experience Allergy and Immunology
None: but why do you want to evade the test?
Answered on Apr 7, 2015

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