Humalog U-100 KwikPen^® or Vial

• Humalog KwikPen is a small, lightweight pen that's prefilled with mealtime insulin. Plus, since it shouldn't be refrigerated after the first use^*, you can take it just about anywhere. You can carry it in your purse, backpack, or pocket because it's the size of a marker.
• Unopened Humalog should be stored in a refrigerator and can be used until the expiration date on the carton or label.
• Humalog should be stored away from light and heat.
• Do not use insulin if it has been frozen.
• Opened vials should be kept at room temperature or in a refrigerator. Opened cartridges or prefilled pens should be kept at room temperature.
• Once opened, Humalog vials, prefilled pens, and cartridges should be thrown away after 28 days even if it still contains insulin.

^*Store at room temperature below 86˚F.