Table 1

Categories of insulin

Category label on Figs. 1, 2, and 5DescriptionDeliveryProducts—brand namesaProducts—generic names
Short-acting insulin (vials)Short-acting, intermediate-acting, or mixed intermediate/ short-acting vialsVial
  • Humulin R, 10-mL vial

  • Humulin R, 3-mL vial

  • Novolin R

  • Novolin R (Relion)

  • Humulin N, 10-mL vial

  • Humulin N, 3-mL vial

  • Novolin N

  • Novolin N (Relion)

  • Humulin 70/30

  • Novolin 70/30

  • Novolin 70/30 (Relion)

  • Insulin regular, human

  • Insulin regular, human

  • Insulin regular, human

  • Insulin regular, human

  • Insulin NPH, human isophane

  • Insulin NPH, human isophane

  • Insulin NPH, human isophane

  • Insulin NPH, human isophane

  • Insulin NPH, human/regular insulin HM

  • Insulin NPH, human/regular insulin HM

  • Insulin NPH, human/regular insulin HM

Rapid-acting insulin (vials)Rapid-acting or mixed intermediate/rapid-acting vialsVial
  • Humalog, 10-mL vial

  • Humalog, 3-mL vial

  • Apidra

  • NovoLog

  • Humalog Mix 75/25

  • Humalog Mix 50/50

  • NovoLog Mix 70/30

  • Insulin lispro

  • Insulin lispro

  • Insulin glulisine

  • Insulin aspart

  • Insulin lispro protamine/lispro

  • Insulin lispro protamine/lispro

  • Insulin aspart protamine & aspart

Rapid-acting insulin (pens)Rapid-acting or mixed intermediate/ rapid-acting pensPen or cartridge
  • Humalog cartridge

  • Humalog KwikPen U-100

  • Apidra SoloSTAR

  • NovoLog cartridge

  • NovoLog FlexPen

  • Humalog Mix 75/25 KwikPen

  • Humalog Mix 50/50 KwikPen

  • NovoLog Mix 70/30 FlexPen

  • Insulin lispro

  • Insulin lispro

  • Insulin glulisine

  • Insulin aspart

  • Insulin aspart

  • Insulin lispro protamine/lispro

  • Insulin lispro protamine/lispro

  • Insulin aspart protamine & aspart

Long-acting insulin (vials/pens)Long-acting vials and pensVial or pen
  • Lantus

  • Levemir

  • Lantus SoloSTAR

  • Levemir FlexPen

  • Insulin glargine

  • Insulin detemir

  • Insulin glargine

  • Insulin detemir

  • Categories of insulin products evaluated by the USC Schaeffer Center for Health Policy & Economics investigators as part of the Insulin Access and Affordability Working Group.

  • aIn the case of the Novo Nordisk products (Novolin R, Novolin N, Novolin 70/30), one is the Novo Nordisk–branded product, while the other corresponds to the same drug sold under the Relion brand. Each has a different national drug code and sells for a different price. In the case of the Eli Lilly products (Humulin R, Humulin N, Humalog), different vial sizes are referenced (3 mL vs. 10 mL).