Anti-panic opening system for doors in which a lateral spring latch bolt (3) is actuated by means of an actuator assembly (10) including a first and a second movable actuating member (19, 20) designed to operate respectively in a first position in which the spring latch (3) protrudes from one side of a covering case (9) and in a second position, turned over by 180null relative to the first position, in which the spring latch (3) projects from the opposite side of the covering case (9).