Intradermal tests were performed with 0.05 ml of differ- ent standard insulins and with a Lantus© test kit from Sanofi Aventis (Frankfurt/Main, Germany) on the volar forearm. Physiological saline and histamine (0.01% hista- mine solution; Bencard, Munich, Germany) served as con- trols. Table 1 shows the results of intradermal testing in detail. Figures 1 and 2 show positive intradermal testing with Levemir©, Huminsulin basal© Humalog©, and Lantus© (Fig. 1) and positive reactions against protamine-contain- ing test solutions (Fig. 2).