The convertible child-resistant vial includes a container having an aperture and a peripheral wall and being provided with a first connection element in the form of contiguous locking and freeing housings provided in a collar extending from the peripheral wall; and a cap hingedly mounted to the container integrally thereof and including a second connection element for cooperating with the first connection element to close the vial in a child safe-manner. The second connection element is in the form of a tooth which is easily removable to convert the child-resistant vial into a non-child-resistant vial. The vial can be molded in a one piece body. The integral mounting of the cap to the container allows easing the distribution and handling of the vial.