Side effects to ALLEGRA (
fexofenadine hydrochloride) include body pain, headache, dizziness, vomiting
and diarrhea are the common side effects of this medication. Others are nervousness,sleep disorders or paroniria, and hypersensitivity reactions urticaria, chest tightness, dyspnea, flushing, pruritus and rash. Discuss your symptoms with your consulting doctor he may change the dose or the medications.
Hope this helped and do keep us posted.