Bongrani S, Baldi G, Cucchini F, di Donato M, Visioli O
Acta Radiol Diagn (Stockh). 1979;20(5):769-78. doi: 10.1177/028418517902000509.
A low osmolality contrast medium (Iopamidol) caused less cardiac disturbance on isolated rabbit heart than a high osmolality medium (Urografin). The same effects were induced by glucose solutions iso-osmolal with the two media. After perfusion with Propranolol (1 microgram/ml) and Cimetidine (1 microgram/ml) the observed effect was unaltered.