Most major chains carry these types, but brand-name versions like Novolin or Humulin may cost significantly more (up to $150+) if not purchased as a store brand. Important Safety Considerations Over-the-Counter Insulin: What to Know Before You Buy

Yes, you can buy certain types of insulin over the counter (OTC) in (with Indiana being the exception) . However, this is typically limited to older, "human" synthetic insulins rather than modern "analog" insulins, which always require a prescription. Available OTC Insulin Types

An intermediate-acting insulin that lasts about 12–18 hours.