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A member asked:
Do antihistamines h1 or h2 blockers affect blood serum histamine or tryptase levels ? for a histamine and tryptase blood level, must i stop zyrtec and pepcid prior to the test?
A doctor has provided 1 answer
It is recommended to stop taking antihistamines for at least 48-72 hours before a blood test for histamine or tryptase levels to obtain accurate results. However, this may vary depending on the specific drug and individual factors such as age, weight, and renal function. It is important to consult with a healthcare provider before stopping any medication or undergoing diagnostic testing.
Answered 6/9/2023
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