Calcium channel blockers: indications and limitations 2. Use in angina and other cardiac disorders.

As discussed in part 1 of this article (page 97), intravenous verapamil (Calan, Isoptin) has established antiarrhythmic value. Attention now centers, however, on the antianginal value of the calcium channel blocking drugs because of the recent introduction of oral preparations for control of variant, stable and unstable angina.