Written by: Dr Subita Alagh
19 June 2025
An insulin pen is a pre-filled or refillable device used to inject insulin. It’s less intimidating and easier to use than traditional syringes.
Photo Credit: Shutterstock
Thanks to thinner needles and better tech, many people find insulin pens less painful and easier to manage.
Photo Credit: Shutterstock
– Disposable: Pre-filled and thrown away after use. – Reusable: Replace the insulin cartridge; the pen is reused. – By Insulin Type: Rapid, short, intermediate, or long-acting. – Manual vs Smart: Smart pens sync with apps to track doses.
Photo Credit: Shutterstock
From the cap and needle to the dose dial and insulin reservoir, each part plays a role in precise and safe insulin delivery.
Photo Credit: Shutterstock
– Store unopened pens in the fridge. – Once opened, keep at room temperature for up to 28 days. – Always remove the needle after use to prevent infection or dose errors.
Photo Credit: Shutterstock
Warm the pen, check expiry, attach a new needle, dial the dose, inject at the right angle, and dispose of the needle safely. One person, one pen—never share.
Photo Credit: Shutterstock
Factor in cost, insulin needs, needle preferences, and smart features. Always consult your doctor before deciding.
Photo Credit: Shutterstock
Pros: Easy to use, portable, precise, color-coded. Cons: May be expensive, needs training, not ideal for all users.
Photo Credit: Shutterstock
Using expired insulin, incorrect doses, or sharing pens can lead to complications. Rotate injection sites and monitor for infections.
Photo Credit: Shutterstock
Insulin pens are revolutionizing diabetes care. Talk to your doctor about the right pen for you. With the right device, diabetes can be managed more confidently and comfortably.
Photo Credit: Shutterstock