Type of Insulin | Duration of action | Example | Identification |
Inhaled insulin | 2-3 hrs | • Afrezza | – |
Rapid acting | 3-4 hrs | • Lispro • Aspart • Glulisine | Clear |
Short acting | 6-8 hrs) | Regular / Soluble insulin (Mnemonic- SS) | Clear |
Intermediate acting | 10-16 hrs | • Isophane insulin / NPH • Lente (Insulin Zn | Cloudy |
Long acting | 12-24 hrs | • Glargine • Detemir | Clear |
Ultra long acting | 24-42 hrs | • Degludec | Clear |
NPH- Neutral Protamine Hagedorn
Figure- Insulin identification (Clear v/s Cloudy)

