The insulins available for clinical use can be classified according to peak effect and duration of action

Fig 3: Peak and Duration of Action of Rapid Acting Insulins



Rapid acting Insulins: The only insulin analog available in India is the rapid acting Lispro. It reaches the blood within 15 minutes after injection. It peaks 30 to 90 minutes later and may last as long as 4-5 hours (Fig 3). It is injected just before meals.

Fig 4: Peak and Duration of Action of Short Acting Insulins



Short acting (Regular): Short-acting (regular) insulin usually reaches the blood within 30 minutes after injection. It peaks 2 to 4 hours later and stays in the blood for about 4 to 8 hours (Fig.4).

Fig 5: Peak and Duration of Action of Intermediate Acting Insulins





Last updated on 13-12-2002