Question: is fexofenadine the same as phenylephrine?
Answer: Allegra (fexofenadine) Sudafed Pe (Phenylephrine) is a good medication for relieving stuffy nose. It doesn't work as well as pseudoephedrine (Sudafed), but it has fewer side effects. Treats allergy symptoms. Allegra (fexofenadine) relieves allergy symptoms without making you feel drowsy.