Table 3.

Insulin preparations

	Onset of action	Peak	Duration of action
Aspart/humalog/glulisine	5 to 15 min	1–2 h	4–6 h
Inhaled insulin	5–15 min	1–2 h	3–6 h
Human regular	30–60 min	2–4 h	6–10 h
Human NPH	1–2 h	4–6 h	10–16 h
Human lente	1–2 h	4–6 h	10–16 h
Human ultralente	2–4 h	Unpredictable	<24 h
Glargine (Lantus)	1–2 h	None	24 h
Detemir (Levemir)	1–2 h	None	24 h