Types of Insulin, compared
| Type | How quickly they take effect | How long they last | Examples |
|---|---|---|---|
| Short-acting (regular) | 30 minutes | 3–6 hours | Humulin R, Novolin R, Velosulin R |
| Rapid-acting | 15 minutes | 2–4 hours | Fiasp, Apidra, Admelog |
| Intermediate-acting | 2–4 hours | 12–18 hours | Humulin N, ReliOn/NovoLIN N |
| Long-acting | 1–4 hours | 24 hours | Tresiba, Levemir, Basaglar, Lantus |
| Ultra-long-acting | 6 hours | 36 hours | Toujeo |
| Inhaled | 12–15 minutes | 2.5 hours | Afrezza |
