Living with COPD has been non stop hell, gaspiong for every breath I take. After taking all the prescripted drugs, inhalers, oxygen, and on, I decided to try the cheap Walitin and the Allegra D. One has fexofenadine, the other, loratadine. They both have pseudoephedrine. Remembering I grew up as a child with a lot od allergies, I decided to give these two products a try. By the way, you have to play the driver's license game with the pharmacist. I'm here to tell you my condition immediately improved 500% within 10 minutes of taking the walitin! I don't think the doctors are looking close enough at this inexpensive method to relieve symptoms. Give it a try. It might help you too.