Allegra Allergy medication is available over the counter at most grocery stores and pharmacies.

Trials have shown both Allegra (fexofenadine) and Claritin (loratadine) are significantly more effective than placebo (a pretend pill) for reducing symptoms associated with allergic rhinitis, hay fever, and other allergies.

On 29 June 2010, Perrigo announced that it had acquired the exclusive US rights to sell and distribute OTC versions of Fexofenadine HCl 180 mg and 60 mg tablets, plus Fexofenadine HCl 60 mg and Pseudoephedrine 120 mg tablets, the generic versions of sanofi-aventis' Allegra and Allegra D-12 products.

No, Allegra® Hives does not have phenylephrine in its formulation. It is made with Fexofenadine HCl, a non-drowsy antihistamine that reduces hives and relieves the itching caused by hives.

Allegra and Zyrtec are common over-the-counter drugs used to treat allergy symptoms. Both drugs are safe and effective, but studies show Zyrtec's effects may last longer than Allegra's. Zyrtec is more likely to cause drowsiness. Drinking fruit juices can make Allegra less effective.

Allegra works within two hours and Zyrtec works within one hour. Several studies have found cetirizine (Zyrtec) to be more effective than fexofenadine (Allegra) at relieving symptoms of allergic rhinitis and urticaria, and it appears to have a longer duration of action.

While it's generally well tolerated, it may cause side effects for some people. Common Allegra side effects include headache, indigestion, and dry mouth. Very rarely, people may experience drowsiness or fatigue after a dose. Side effects from Allegra are usually mild and can be managed at home.

Cough, fever, or stomach upset may occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly. If your doctor has prescribed this medication, remember that your doctor has judged that the benefit to you is greater than the risk of side effects.

Fexofenadine, sold under the brand name Allegra among others, is an antihistamine pharmaceutical drug used in the treatment of allergy symptoms, such as hay fever and urticaria.

Fexofenadine is the name of a medicine that is in Allegra. Curist Allergy Relief is a generic for fexofenadine, as Curist Allergy Relief contains fexofenadine 180 mg.

Fexofenadine (brand Allegra), loratadine (brand Claritin) and cetirizine) (brand Zyrtec) are all considered newer antihistamines because they were designed to be safer than first generation antihistamines like Benadryl (diphenhydramine) as they do not cause drowsiness, or have very limited drowsiness.

Are Benadryl and Allegra the Same Thing? Benadryl (diphenhydramine) and Allegra (fexofenadine hydrochloride) are antihistamines used to treat allergic symptoms of seasonal allergic rhinitis (sneezing, runny nose, itchy or watery eyes), and hives.