Oral Mesalazine segmentation by type distinguishes immediate-release tablets, delayed-release tablets, and delayed-release capsules; each variant governs distinct pharmacokinetic corridors and reimbursement tiers, thereby fragmenting revenue. Immediate-release, though cheapest per unit, captures only 18 % share because high-dose, multiple-daily regimens erode compliance and payer preference. Delayed-release tabletsโusing Eudragit-S coatings that activate at pH โฅ 7โcommand 54 % of 2023 sales by guaranteeing ileo-colonic targeting and once-daily posology, a value proposition supporting premium pricing in the U.S. and EU-5. Capsule formulations (28 %) leverage same coating technology but appeal to dysphagic or paediatric cohorts; their per-milligram price sits 8โ12 % above tablets, cushioning manufacturer margins despite smaller prescription volume. Analytically, this tripartite typology shapes competitive dynamics because generic entry timelines, patent cliffs, and manufacturing complexity differ for each oral solid format, forcing portfolio strategists to model distinct erosion curves within the Oral Mesalazine market.