The present invention concerns an indication mechanism for an automatic applicator particularly for insulin or other liquid preparations particularly for multiple injection administration of set doses of a medicine from an exchangeable container for example for the self-application of insulin by diabetes patients. An indication mechanism for an automatic applicator comprising an assembly of at least two barrels movably coupled to each other is characterised in that the indication barrel (2) mounted on the driving barrel (1) contains only marking (2.1) on its external surface and is co-axially connected to the pull-push control nut (3).
