Praeruptorin B is primarily studied for its pharmacological effects in traditional medicine, particularly in cardiovascular and respiratory applications. It exhibits vasodilatory properties, helping to relax blood vessels and improve blood flow, which may support its use in managing hypertension and coronary heart disease. Research also indicates anti-inflammatory and antioxidant activities, suggesting potential in reducing airway inflammation and supporting lung function. Additionally, it has been investigated for its role in modulating calcium channels, contributing to smooth muscle relaxation. These properties make Praeruptorin B a compound of interest in developing treatments for asthma, chronic obstructive pulmonary disease (COPD), and other circulatory disorders. Furthermore, studies have explored its neuroprotective effects, including the prevention or slowing of neuronal degeneration, which may be relevant to neurodegenerative diseases such as Alzheimer's. Most studies remain in preclinical stages, focusing on isolating effects and optimizing therapeutic potential, with commercial applications requiring further clinical data.