“2 The NO donors DEANO, SIN‐1, SNP, SNAP … no significant effects on basal ICa,L. However, DEANO (100 …, L after the current had been previously stimulated by either isoprenaline (Iso, 1‐10 nM), a … agonist, or isobutylmethyl‐xanthine (IBMX, 10‐80 μM), a wide spectrum phosphodiesterase (PDE) inhibitor.”