The Tongfengshu Tablets segmentation by type is anchored in two clinically distinct formulations: sugar-coated and film-coated. Sugar-coated variants, still accounting for roughly 60 % of 2023 China ex-factory revenue, appeal to traditional channel buyersโcounty-level hospitals and older patientsโbecause their familiar organoleptic profile encourages adherence. However, their 8โ10 % higher excipient burden lengthens production cycles and compresses gross margin by 2โ3 pp versus film-coated alternatives. Film-coated tablets, though priced 12โ15 % higher per unit, are capturing the incremental growth: higher mechanical strength reduces breakage in high-speed blister lines, while lower moisture sensitivity extends shelf life to 36 months, aligning with tender specifications of centralized procurement. Consequently, film-coated volume CAGR 2021-24 is 9.2 % vs 3.1 % for sugar-coated, driving a structural shift within the overall Tongfengshu Tablets market size.