Top answers from doctors based on your search:
cause of fexofenadine allergy
A 33-year-old male asked:

Dr. Michael Gabor answered
33 years experience Diagnostic Radiology
Fexofenadine: is an antihistamine. Allergy is the immune system's over-reaction to various stimuli(antigens), and can occur with any drug, but usually rare with t ... Read More
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A 40-year-old member asked:

Dr. Suresh Anand answered
26 years experience Allergy and Immunology
Allegra (fexofenadine) allergy: I am not quite sure of the question. Allegra (fexofenadine) is a non drowsy antihistamine to treat symptoms of allergic or non allergic rhinitis. The ... Read More
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A 39-year-old member asked:

A Verified Doctor answered
A US doctor answered Learn more
Probably none.: If you have had an adverse reaction to allegra, (fexofenadine) you should simply avoid it in the future. Immediate treatment might require other ant ... Read More
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A 28-year-old male asked:

Dr. Tal Dagan answered
24 years experience ENT and Head and Neck Surgery
Allegra (fexofenadine) allergy: Allegra is a brand name for a medication used to treat hay fever and allergy symptoms. It is a type of anti histamine that reduces or blocks histamine ... Read More
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A 33-year-old member asked:

Dr. John Klimas answered
48 years experience Allergy and Immunology
Yes: Fexofenadine, or Allegra (fexofenadine) has no effect on the central nervous system or brain, even at high doses. There should be no sedation or impai ... Read More
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A 42-year-old member asked:

Dr. Michael Zacharisen answered
33 years experience Allergy and Immunology
Yes, but why: While it is best to avoid high doses of "d" which is pseudoephedrine-decongestant, an extra dose of Allegra (fexofenadine) is unlikely to be harmful. ... Read More
A 27-year-old female asked:

Dr. Kelenne Tuitt answered
10 years experience Family Medicine
Expired : I would advise against taking medication that has expired as it may not be effective.
A member asked:

Dr. Steven Machtinger answered
44 years experience Allergy and Immunology
Little interaction: Allegra does not cross from the bloodstream into the brain so it does not cause sedation or other behavioral side-effects. It's an excellent choice as ... Read More
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A 56-year-old female asked:

A Verified Doctor answered
A US doctor answered Learn more
No: As long as it's plain Allegra (fexofenadine) without the "d" it won't raise blood pressure.
A 37-year-old member asked:

Dr. John Chiu answered
57 years experience Allergy and Immunology
No problem: Since Allegra (fexofenadine) is not considered a sedating drug, enjoy your beer.
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