A child resistant carton assembly includes a carton including a body panel. A locking panel is spaced apart from the body panel. The locking panel and the body panel define a locking chamber therebetween. A tray is slidably mounted in the carton. The tray includes a locking tab adapted to releasably engage the locking panel such that at least an insert portion of the locking tab is disposed in the locking chamber. A method is provided for using a child resistant carton including a carton and a tray slidably mounted in the carton. The carton includes a body panel and a locking panel spaced apart from one another and defining a locking chamber therebetween. The tray includes a locking tab. The method includes inserting at least an insert portion of the locking tab into the locking chamber to resist withdrawal of the tray from the carton, and displacing the locking tab from the locking chamber to release the tray.