Pimobendan isa calcium sensitizer and a selective inhibitor of phosphodiesterase 3 (PDE3) with positive inotropic and vasodilator effects. It has been studied for treating heart failure and cardiomyopathy, primarily for veterinary uses.
Mechanoenergetic effect of pimobendan in failing dog hearts. [1]
Effects of pimobendan for mitral valve regurgitation in dogs. [2]
Pharmacokinetics of oral pimobendan in healthy cats. [3]