[Development of traditional "drug-drug co-processing" technique: a review].

"Drug-drug co-processing"(DDCP) is a distinctive technique in the field of traditional Chinese medicine(TCM) processing. By synergistically processing target materials with specific drugs or medicinal juices, it demonstrates significant advantages in toxicity reduction, efficacy enhancement, and the modulation of medicinal properties. This study systematically reviews the historical evolution of DDCP and innovatively constructs a tripartite technical classification framework encompassing dry drug processing, medicinal juice processing, and fractional processing. The study finds that dry drug processing includes techniques such as stir-frying, roasting, steaming, and boiling; medicinal juice processing comprises ten core techniques including immersion, stir-frying, and steaming; while fractional processing adopts a novel method of differentially processing equal portions, showing unique advantages in the treatment of medicinal materials such as Atractylodis Rhizoma and Atractylodis Macrocephalae Rhizoma. Theoretical analysis indicates that this technique, through multi-component synergistic mechanisms, not only effectively moderates medicinal properties and enhances therapeutic efficacy but also facilitates the development of novel drugs, significantly expanding the scope of medicinal applications. This study provides the first systematic elucidation of the processing mechanisms underlying DDCP, offering theoretical support for the modernization of traditional processing techniques and bearing important practical significance for preserving the cultural wisdom of TCM and promoting innovation in processing technologies.