Automatic applicator for liquid pharmaceutical preparations comprising a body housing, having a plunger, suitable for expelling the medicine, linearly displaced by means of a driving unit, driven via a double action clutch unit, by a tensioning spring situated in the body housing, wherein the tensioning spring is a twisted spring, the said tensioning spring tensioned by a rotary hand-dose-setting ring via the same double action clutch unit, wherein the said driving unit is activated by pressing a trigger unit and a dose is indicated by an indicating arrangement via an inspection window, according to the present invention is characterised in that the double action clutch unit comprises a coupling sleeve (6) that is rigidly connected to the rotary hand-dose-setting ring (3) and radially coupled with a body of a ratchet barrel (5) that is rigidly connected to the tensioning spring (15) that is connected to a spring block (4) that is rigidly connected to the body housing (1) and secured against rotation.
