Included Medication VERAPAMIL ER PM DILT CD AMLODIPINE ISRADIPINE MATZIM LA DILTZAC ER NISOLDIPINE TAZTIA XT FELODIPINE COVERA-HS CARTIA XT NIFEDICAL XL NIFEDIPINE DILTIAZEM HCL VERAPAMIL ER PM VERAPAMIL HCL ER VERAPAMIL HCL NICARDIPINE HCL DILTZAC ER