I presently take tenormin,cardura,diovan,furose mide for high blood pressure, in pareticular high systolic bp. They now want to add DILTIAZEM and frankly I am a little nervous about all these medications interacting AND POSSIBLE SIDE EFFECTS. Has anyone had any experience with DILTIAZEM that they may want to share with me. Please let me have your comments at tomwayne1@cox.net. Many thanks.