| Insulin type | Onset (minutes) | Peak (hours) | Duration (hours) |
|---|---|---|---|
| Immediate-acting | |||
| Insulin lispro solution | 15 | 0.5 to 1.5 | 2 to 5 |
| Insulin aspart solution | 15 | 1 to 3 | 3 to 5 |
| Rapid-acting | |||
| Regular | 30 to 60 | 2 to 4 | 8 to 12 |
| Prompt insulin zinc solution | 60 to 90 | 5 to 10 | 12 to 16 |
| Intermediate-acting | |||
| Isophane insulin suspension NPH | 60 to 150 | 4 to 12 | 24 |
| Lente | 60 to 150 | 7 to 15 | 24 |
| Long-acting | |||
| Ultralente | 240 to 480 | 10 to 30 | 20 to 36 |
| Lantus | 60 | 5 | 24 or more |