Humalog Mix25: The active substance of Humalog Mix25 is insulin lispro. 25% of the insulin lispro in Humalog Mix25 KwikPen is dissolved in water and it works more quickly than normal human insulin because the insulin molecule has been changed slightly. 75% of the insulin lispro in Humalog Mix25 KwikPen is available in a suspension together with protamine sulphate, so that its action is prolonged.
Humalog Mix50: The active substance of Humalog Mix50 is insulin lispro. 50% of the insulin lispro in Humalog Mix50 KwikPen is dissolved in water and it works more quickly than normal human insulin because the insulin molecule has been changed slightly. 50% of the insulin lispro in Humalog Mix50 KwikPen is available in a suspension together with protamine sulphate, so that its action is prolonged.