Table 1.

Advantages and disadvantages of insulin pens

Device	Advantages	Disadvantages
Insulin pen	Discreet Efficient and convenient delivery of insulin Accurate dosing Ease of injection Time saving Flexible because of disposable and reusable options Easy to carry Better treatment compliance Long-term cost-effectiveness	More expensive than syringes in countries with poor/low incomes More expensive than syringes for the first time Does not allow mixing of different insulin types Low dosing
Insulin pump	Use of consistent insulin regimen Ensures continuous delivery of insulin Close resemblance to the physiologic delivery of insulin Offers lifestyle flexibility Patient compliance and acceptance	Technical and safety issues with the cannula and infusion set (detach, crimp, or leakage) Can cause skin irritability or hypersensitivity in patients Require more patient involvement and compliance Require training, patient education, and motivation to use More expensive