Rapid- and Short-Acting Insulin

Rapid-acting insulins
These are clear solutions containing a modified form of human insulin. The modification results in a rapid onset and a short duration of action. The timing of injection in relation to meals is therefore very important.

Rapid-acting insulin
Onset: 10-20 minutes
Peak: 1-3 hours
Duration: 3-5 hours
  


Short-acting insulins
These are clear solutions containing an insulin identical to that found in body. Like rapid-acting insulins they are also intended to be given before meals but the timing of this injection will differ from rapid-acting insulin. An injection should be followed by a meal or snack containing carbohydrates within 30 minutes.

Short-acting human insulin
Onset: 30 minutes
Peak: 2.5-5 hours
Duration: 8 hours

It is important to note that the duration and absorption times described above are only approximate. Absorption of insulin always depends on individual factors.

For further information please contact your doctor.