The problem is that your pills probably have either hydroproxyl methylcellulose or povidone (or both). There are techniques for removing both, and if you search around you'll find them pretty easily. However, what I have found is that it doesn't matter *what* they put in the stuff, if you don't mind waiting around for a while.
Normally, problems arise during the base extraction. When you add NaOH to your aqueous solution of pill extract, and try to add some toluene to extract it, you wind up with a big, emulsified mess. But if you put it on a shelf for a day or two, it *will* eventually separate. And if you are careful, you can decant off *most* of the toluene without getting the gunk in your extract. So if you don't have the skills, equipment or chemicals to do it the way that is recommended in earlier threads, just substitute time. Your emulsion will eventually settle (for the most part), and although your extraction yields will be reduced you will get sufficiently clean pseudoephedrine.
You should be a little concerned, though. If you don't have the chemicals and equipment necessary to pull of a clean extraction, you might want to ask yourself if you have access to everything you need to pull of the subsequent reaction.