Child resistant bulk dose dispensing unit

Child- resistant bulk dose dispensing packaging unit, and a method for opening the packaging unit, including a container (101) and a lid (102) engaged with the container. The container includes a reservoir, an aperture (103) at a top end of the reservoir, and a protrusion (704) extending from a surface of the container. The lid engages with the container and slides between a closed position and an open position. The lid includes a top wall (401), a side wall (402a, 402b) extending down from an outer edge of the top wall, and a post (804a) configured to engage the protrusion at a first position when the lid is closed so as to keep the lid closed. At least a portion of the post extends substantially parallel to the side wall at a distance from the side wall. Pressing the side wall inward places the post at a second position, wherein at the second position the post is disengaged from the protrusion.