Disopyramide and bundle-branch block.
D002037:Bundle-Branch Block / Q000188:drug therapy*; D004206:Disopyramide / Q000009:adverse effects*; D005260:Female; D006327:Heart Block / Q000139:chemically induced*; D006801:Humans; D008875:Middle Aged; D011725:Pyridines / Q000009:adverse effects*
D011725:Pyridines; D004206:Disopyramide