One of a class of drugs that acts by selective inhibition of calcium influx through cell membranes or on the release and binding of calcium in intracellular pools.
An EC 2.7.11.* (protein-serine/threonine kinase) inhibitor that interferes with the action of non-specific serine/threonine protein kinase (EC 2.7.11.1), a kinase enzyme involved in phosphorylation of hydroxy group of serine or threonine.