Y-33075 is primarily utilized in the field of medical research, particularly in the study of cardiovascular diseases. It functions as a potent and selective inhibitor of cyclic nucleotide phosphodiesterase 3 (PDE3), an enzyme that plays a critical role in regulating cardiac and vascular smooth muscle contraction. By inhibiting PDE3, Y-33075 helps to increase intracellular levels of cyclic AMP, leading to enhanced myocardial contractility and vasodilation. This makes it a valuable compound for investigating potential therapeutic strategies for conditions such as heart failure and hypertension. Additionally, its specific action on PDE3 allows researchers to explore its effects on platelet aggregation, providing insights into its potential use in preventing thrombotic events.