Allegra 120 mg Tablet is used to treat symptoms of allergic rhinitis (Hay Fever), which is an allergy caused by pollen, dust, or pet dander. It provides relief from major symptoms like a runny nose, sneezing, a blocked or stuffy nose, and itchy, watery eyes. Allegra 120 Mg Tablet is a prescription medicine that is available as a Tablet. Allergy, Urticaria Pigmentosa, Allergic Rhinitis are some of its major therapeutic uses. The alternative uses of Allegra 120 Mg Tablet have also been explained below. The correct dosage of Allegra 120 Mg Tablet depends on the patient's age, gender, and medical history. Dosage also depends on the route of administration and your chief complaint for which the drug is prescribed. For detailed information on this ... Allegra 120 mg Tablet is used to treat various kinds of allergies. It contains Fexofenadine, which blocks the effects of a chemical messenger known as histamine, that is naturally involved in allergic reactions. View Uses, Benefits, and Price of Allegra 120 mg Tablet at Apollo Pharmacy.