A blister piercing element (1) for puncturing the cover (6a) of a blister (6) containing a dose of medicament for inhalation by a user, comprising a body (2) having a surface (3) and an opening (4) on the surface (3) for the passage of air, or for the passage of the drug entrained with the air, through the body (2), in which the body (2) includes a pair of teeth of separate cut (8, 9) that rise from the surface (3) in a separate relationship next to each other, the teeth (8, 9) being symmetrical with respect to a plane that extends between the teeth (8, 9 ), which is perpendicular to the surface (3), each cutting tooth (8, 9) protruding from said opening (4), each tooth (8, 9) comprising a vertical part (11) extending from the surface (3) adjacent to, or from, a periphery (10) of the opening (4) and a cantilever part (12) extending from an upper end of the vertical part (11) and protrudes outwardly with respect to said opening (4), each tooth (8, 9) having a distal cutting edge (13, 14) at a free end away from said surface (3), each tooth comprising ( 8, 9) also a vertex (15) that is placed on the distal cutting edge (13, 14) and which is configured to initially puncture a blister cover (6a), said distal cutting edge (13, 14) extending from the vertex (15) of each tooth (8, 9) in two different directions and at an angle to the surface (3), in which a first part (13) of the distal cutting edge of each tooth (8, 9 ) extends from the vertex (15) in a direction towards the vertex (15) of the other tooth (8, 9) and a second part (14) of the distal cutting edge of each tooth (8, 9) extends from the vertex (15) in a direction that moves away from the other tooth (8, 9), extending a secondary cutting edge (16) from the vertex (15) of each tooth (8, 9) along the part cantilever (12) towards the vertical part (11), the first part (13) of the distal cutting edge of each tooth (8, 9) being configured to start a groove in the blister cover (6a) initially punctured by the vertex
