Comparative Pharmacologic Effects of Calcium Channel Blockers
| Verapamil | Nifedipine | Nicardipine | Diltiazem | | Systemic blood pressure | Decrease | Decrease | Decrease | Decrease | | Heart rates | Decrease | Increase to no change | Increase to no change | Decrease | | Myocardial depression | Moderate | Moderate | Slight | Moderate | | Sinoatrial node depression | Moderate | None | None | Slight | | Atrioventricular node conduction | Marked | None | None | Moderate depression | | Coronary artery dilation | Moderate | Marked | Greatest | Moderate | | Peripheral artery dilation | Moderate | Marked | Marked | Moderate |
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