Admittedly the calcium blocker is not that much worse, even in diabetics, it actually looked quite good but it did not prevent heart failure as well as the other two classes do.

In a precursor to a forthcoming international guideline on the management of calcium channel blocker poisoning, a new systematic review has been published assessing the available evidence.

The majority of literature on calcium channel blocker overdose management is heterogenous, biased, and low-quality evidence.