Peiminine is widely used in traditional medicine for its anti-inflammatory and analgesic properties. It is commonly applied in formulations aimed at relieving cough and reducing phlegm, making it valuable in treating respiratory conditions such as bronchitis and chronic obstructive pulmonary disease (COPD). The compound also exhibits sedative effects, supporting its use in managing insomnia and anxiety-related disorders. Recent studies suggest potential anticancer activity, particularly in inhibiting the growth of certain lung and breast cancer cells, which has led to increased interest in its development as an adjunct in oncology therapies. Additionally, peiminine has been explored for its immunomodulatory effects, helping regulate immune responses in autoimmune and inflammatory diseases.