Synonyms : Alphapharm Brand of Sulfasalazine, Ashbourne Brand of Sulfasalazine, Asulfidine, Azulfadine, Azulfidine, Azulfidine EN-tabs, Colo-Pleon, FNA Brand of Sulfasalazine, Henning Berlin Brand of Sulfasalazine, Heyl Brand of Sulfasalazine, Pleon, Pyralin EN, Salazopyrin