Catalpin is primarily used in traditional medicine and phytochemical research due to its natural occurrence in certain medicinal plants. It exhibits biological activity that supports its use in anti-inflammatory and antioxidant formulations. Studies suggest catalpin may play a role in managing metabolic disorders, including diabetes, by influencing glucose metabolism and insulin sensitivity. It is also investigated for its potential cardioprotective effects, helping reduce oxidative stress in cardiovascular tissues. Due to its bioactive properties, catalpin is of interest in the development of herbal supplements and natural therapeutic agents.