A dry powder inhaler for delivering medicament to a user from at least one blister pack, the blister pack having a plurality of spaced-apart blister pockets containing doses of the medicament, the inhaler comprising: a housing for accommodating unused and used portions of the blister pack together with a dispensing mechanism for selectively opening the blister pockets; and a manifold component through which air can be drawn in use of the inhaler, wherein the manifold component comprises: an air inlet opening for receiving external air; an air outlet opening for providing the external air from the air inlet opening into an opened blister pocket, the air inlet opening being fluidly connected to the air outlet opening by an air delivery conduit formed in the manifold component; a medicament inlet opening for receiving air-entrained medicament from the opened blister pocket, the air outlet opening and the medicament inlet opening being arranged side-by-side to enable simultaneous communication with the opened blister pocket; and a medicament outlet opening for delivery of the air-entrained medicament from the opened blister pocket to the user, the medicament inlet opening being fluidly connected to the medicament outlet opening by a medicament delivery conduit formed in the manifold component, characterised in that the air outlet opening is arranged to be positioned substantially centrally over the opened blister pocket, and wherein the medicament inlet opening is arranged to be positioned over the opened blister pocket so as to be closer to an edge of the opened blister pocket than the air outlet opening. a housing for accommodating unused and used portions of the blister pack together with a dispensing mechanism for selectively opening the blister pockets; and a manifold component through which air can be drawn in use of the inhaler, wherein the manifold component comprises: an air inlet opening for receiving external air; an air outlet opening for providing the external air from the air inlet opening into an opened blister pocket, the air inlet opening being fluidly connected to the air outlet opening by an air delivery conduit formed in the manifold component; a medicament inlet opening for receiving air-entrained medicament from the opened blister pocket, the air outlet opening and the medicament inlet opening being arranged side-by-side to enable simultaneous communication with the opened blister pocket; and a medicament outlet opening for delivery of the air-entrained medicament from the opened blister pocket to the user, the medicament inlet opening being fluidly connected to the medicament outlet opening by a medicament delivery conduit formed in the manifold component, an air inlet opening for receiving external air; an air outlet opening for providing the external air from the air inlet opening into an opened blister pocket, the air inlet opening being fluidly connected to the air outlet opening by an air delivery conduit formed in the manifold component; a medicament inlet opening for receiving air-entrained medicament from the opened blister pocket, the air outlet opening and the medicament inlet opening being arranged side-by-side to enable simultaneous communication with the opened blister pocket; and a medicament outlet opening for delivery of the air-entrained medicament from the opened blister pocket to the user, the medicament inlet opening being fluidly connected to the medicament outlet opening by a medicament delivery conduit formed in the manifold component, characterised in that the air outlet opening is arranged to be positioned substantially centrally over the opened blister pocket, and wherein the medicament inlet opening is arranged to be positioned over the opened blister pocket so as to be closer to an edge of the opened blister pocket than the air outlet opening.