1 ml contains 100 IU of insulin human.
One IU (International Unit) corresponds to 0.035 mg of anhydrous human insulin.
Actrapid: 1 vial contains 10 ml equivalent to 1,000 IU.
Actrapid Penfill: 1 cartridge contains 3 ml equivalent to 300 IU.
Excipients/Inactive Ingredients: Zinc chloride, glycerol, metacresol, sodium hydroxide/hydrochloric acid (for pH adjustment) and water for injections.