- The L-type calcium channel inhibitor diltiazem prevents cardiomyopathy in a mouse model. Semsarian, C., Ahmad, I., Giewat, M., Georgakopoulos, D., Schmitt, J.P., McConnell, B.K., Reiken, S., Mende, U., Marks, A.R., Kass, D.A., Seidman, C.E., Seidman, J.G. J. Clin. Invest. (2002)