Intermediate-Acting Insulin

An insulin formulation may contain a substance which delays, or retards, the absorption of insulin. The combination of insulin and a retarding substance usually results in the formation of crystals which give the liquid a cloudy look. The insulin crystals must be mixed evenly before each injection. Intermediate-acting insulins take approximately 1.5 hours before they begin to have an effect. The largest effect occurs between 4 and 12 hours after the injection, and after approximately 24 hours, the whole dose has been absorbed. Intermediate-acting insulin is designed to give you a background level of insulin.

Intermediate-acting human insulin
Onset: 1.5 hours
Peak: 4-12 hours
Duration: 24 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.