Neriifolin is primarily recognized for its application in the field of medical research, particularly in the study of heart-related conditions. It is a cardiac glycoside, which means it has the potential to affect the heart's function. Researchers have explored its use in modulating heart contractions and its impact on heart rhythm, making it a compound of interest in the development of treatments for certain cardiac disorders. Additionally, its cytotoxic properties have been investigated in the context of cancer research, where it is studied for its ability to inhibit the growth of cancer cells. However, its use is largely confined to laboratory settings and preclinical studies, as further research is needed to fully understand its efficacy and safety profile in therapeutic applications.