Inden omstilling til Insuman Basal anbefales det at foretage en intradermal hudtest på de patienter, der er allergiske over for animalsk insulin, da disse patienter kan udvikle immunologiske krydsreaktioner. ###>In patients with an allergy to animal insulin intradermal skin testing is recommended prior to a transfer to Insuman Basal, since they may experience immunological cross-reactions.