Segmentation by type classifies Isoniazid Injection into single‑dose vials, multi‑dose vials, and prefilled syringes, each with sub‑variants based on container material (glass vs. polymer) and sterility assurance level. Single‑dose vials, representing roughly 55 % of the product mix, are favored in low‑resource settings due to minimal waste and simplified cold‑chain logistics. Multi‑dose vials, comprising about 30 % of output, serve high‑throughput hospitals where batch administration reduces per‑unit cost but imposes stricter aseptic handling requirements. Prefilled syringes, the fastest‑growing niche at 15 %, address safety concerns by eliminating bedside reconstitution and are increasingly adopted in outpatient and home‑care models. The distribution of these types directly shapes manufacturing investment decisions, as each requires specific packaging lines, validation protocols, and regulatory submissions, thereby affecting the overall market valuation and competitive dynamics.