The type segmentation of the Targeted Drug MEK Inhibitors for NSCLC market distinguishes products primarily by molecular delivery and selectivity characteristics. Oral selective inhibitors, which dominate due to patient convenience and established pharmacokinetics, account for roughly 70% of the market revenue, driving scale economies in manufacturing and distribution. Intravenous selective agents, although limited to specialized oncology centers, contribute approximately 15% of sales, reflecting higher acquisition costs but niche clinical utility in patients with absorption issues. Next‑generation selective molecules—designed to overcome resistance mechanisms—represent an emerging 10% share, attracting premium pricing and R&D investment. Finally, non‑selective MEK inhibitors, largely phased out, retain a marginal 5% footprint, mainly in legacy treatment protocols. By quantifying each type’s revenue contribution, analysts can gauge the impact of formulation trends on overall market size and forecast shifts as pipeline candidates progress toward regulatory approval.