Visitors with diabetes must pay special attention. Since Insulin is not sold at every pharmacy, it is better to learn in advance about its availability. In addition, dosage and labeling may differ from those to which you are accustomed. There are different concentrations of Insulin available at the market. E.g. 1 ml of the drug may have different amounts of insulin units (IU) - 40, 80, 100 and 500. In Russia, unlike, for example, in the USA and most European countries, typical Insulin concentration is 40 IU, but NOT 100 IU (concentrated insulin is sometimes sold in Russian pharmacies, but such dosage is the exception rather than the rule). At the same time, insulin in the cartridges (used for insulin pens) in Europe and Russia has a concentration of 100 IU / ml that is two and a half times more than in vials.