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A member asked:

Would taking zyrtec, allegra (fexofenadine) and montelukast effect my blood work at a lab? i have an appointment soon and would like to know b4 i begin medication

A doctor has provided 1 answer
Dr. Michael Zacharisen answered

Specializes in Allergy and Immunology

No: The antihistamines zyrtec and Allegra (fexofenadine) and leukotriene modifier montelukast do not effect blood tests.

Answered 6/24/2014

5.2k views

Thank

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I've tried Zyrtec and allegra (fexofenadine) for my allergies and both of them make me feel real tired and spaced out. How can I treat allergies if I can't take meds?

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Will allegra (fexofenadine) or zyrtec help treat fatique, mood disturbances, and facial tingling associated with histamine and cytokine release? Or is it only effective at treating the symptoms listed on the box?

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Is it okay to take a 24 hr zyrtec in the am and a 12 hour allegra (fexofenadine) at night? The zyrtec alone hasn't been working well enough lately.

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Slightly higher eosonophil count. 6 months hv eosonophilc esophagits and skin itching. Did endo sopy. On omprezolle allegra (fexofenadine) and zyrtec. Not getng btr.

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