INS and type 1 diabetes mellitus: Insulin lispro 100 units/mL Jr KwikPen® is the first insulin lispro 100 units/mL prefilled, disposable, half‐unit insulin pen that delivers 0.5–30 units in steps of 0.5 units for the treatment of Type 1 diabetes (T1D) and Type 2 diabetes (T2D).