Think the name/abbr on the bottle was ent la. I remember they were big pills and generally blue (i think). They worked wonders and was bummed when they discontinued it (was on a break from the meds and haven't found anything as good since). I've tried google and wiki searches and can't appear to locate anything to tell me what it was.
I want to say you're thinking of Drixoral. It is a powerful allergy medicine containing Dexbrompheniramine Maleate and Pseudoephedrine Sulfate. It is comparable to Claritin 24 hour and Sudafed. You can still purchase it in Canada - it is a large green pill. The reason is was discontinued in Us is because it has lots of side effects and people were using it to cook meth.