By type, low-molecular-weight-heparin (LMWH) formulations represent 83% of global revenue, reflecting their superior pharmacokinetics, outpatient compatibility, and lower heparin-induced thrombocytopenia (HIT) incidence. Unfractionated heparin (UFH), 17% of sales, is still required during surgery and dialysis due to immediate reversibility with protamine. Within LMWL, Enoxaparin dominates with 72% share, anchored by patent cliff mitigation via branded generic vials and prefilled syringes. Parnufin (12%) and Fragmin (8%) leverage oncology and pediatric indications, while others (8%), including Tinzaparin, serve niche renal dysfunction cases. The market taxonomy illustrates how dosage form (prefilled syringe vs. vial) further segments value; prefilled convenience commands >20% price premium. This market segmentation hierarchy underpins portfolio strategy, where LMWH growth offsets UFH commoditization.