This invention relates to a fixed-dose dry powder inhalation formulation comprising fluticasone propionate and albuterol sulfate, together with an α-lactose monohydrate carrier. In the formulation, the albuterol sulfate stabilises fluticasone propionate.

The present invention provides an inhaler comprising a housing which contains a blister strip having a plurality of blisters which contain powdered medicament for inhalation; a mouthpiece through which the medicament is inhaled by a user; an indexing wheel for indexing the blister strip; an opening mechanism for opening the blisters; an actuator which is movable between a first position and a second position in order to operate the indexing wheel and the opening mechanism; and a coupling mechanism for coupling the actuator to the indexing wheel so that the indexing wheel rotates together with the actuator during part of the motion of the actuator; characterized in that the coupling mechanism comprises a shuttle that rotates on the same axis as, and translates axially relative to, the indexing wheel.

An inhaler includes a main body having a canister housing, a medicament canister retained in a central outlet port of the canister housing, and a dose counter having an actuation member for operation by movement of the medicament canister. The canister housing has an inner wall, and a first inner wall canister support formation extending inwardly from a main surface of the inner wall. The canister housing has a longitudinal axis X which passes through the center of the central outlet port. The first inner wall canister support formation, the actuation member, and the central outlet port lie in a common plane coincident with the longitudinal axis X such that the first inner wall canister support formation protects against unwanted actuation of the dose counter by reducing rocking of the medicament canister relative to the main body of the inhaler.

The present invention provides a dry powder inhaler comprising: a reservoir containing a dry powder formulation and an arrangement for delivering a metered dose of the medicament from the reservoir; a cyclone deagglomerator for breaking up agglomerates of the dry powder medicament; and a delivery passageway for directing an inhalation-induced air flow through a mouthpiece, the delivery passageway extending to the metered dose of medicament, wherein the formulation comprises an inhalable β.sub.2-agonist having a particle size distribution of d1O<1 μπ.Math.=1-3 μπ.Math., d90=3.5-6 μm and NLT 99% 10 μm and a lactose carrier.

This invention relates to a fixed-dose dry powder inhalation formulation comprising fluticasone propionate and albuterol sulfate, together with an α-lactose monohydrate carrier. In the formulation, the albuterol sulfate stabilises fluticasone propionate.

Disclosed is a dry powder inhaler for delivering medicament from at least one blister pack, each blister pack having a plurality of spaced-apart blister pockets containing doses of the medicament. The inhaler comprises: a housing for accommodating unused and used portions of the at least one blister pack together with a dispensing mechanism for simultaneously opening at least two blister pockets at a time; and a manifold component through which air can be drawn in use of the inhaler. The manifold component comprises: first and second air inlet openings for receiving external air a first air outlet opening for providing the external air to a first opened blister pocket and a first medicament inlet opening for receiving air-entrained medicament from the first opened blister pocket, the first air outlet opening and the first medicament inlet opening being arranged side-by-side to enable simultaneous communication with the first opened blister pocket; a second air outlet opening for providing the external air to a second opened blister pocket and a second medicament inlet opening for receiving air-entrained medicament from the second opened blister pocket, the second air outlet opening and the second medicament inlet opening being arranged side-by-side to enable simultaneous communication with the second opened blister pocket; and a medicament outlet opening for delivery of the air-entrained medicament from the first and second opened blister pockets to the user, the first and second medicament inlet openings being fluidly connected to the medicament outlet opening by a medicament delivery conduit formed in the manifold component. The first and second air inlet openings are fluidly connected to the first and second air outlet openings by respective first and second air conduits in the manifold component, wherein the air conduits are separately provided so that the external air from each of the first and second air inlet openings does not mix with the external air from the other of the first and second air inlet openings before reaching the first and second opened blister pockets.

A nasal inhaler for the inhalation of inhalable substances comprise: a canister having an interior reservoir containing pressurised inhalable substances including fluid; a metering valve including a metering chamber and a valve stem defining a communication path between the metering chamber and the interior reservoir, the communication path including an opening configured to permit flow between a transfer space inside the valve stem and the interior reservoir, the interior reservoir being arranged for orientation above the metering chamber whereby gas located within the metering chamber is replaced with liquid from the interior reservoir.

An inhaler includes a main body having a canister housing, a medicament canister retained in a central outlet port of the canister housing, and a dose counter having an actuation member for operation by movement of the medicament canister. The canister housing has an inner wall, and a first inner wall canister support formation extending inwardly from a main surface of the inner wall. The canister housing has a longitudinal axis X which passes through the center of the central outlet port. The first inner wall canister support formation, the actuation member, and the central outlet port lie in a common plane coincident with the longitudinal axis X such that the first inner wall canister support formation protects against unwanted actuation of the dose counter by reducing rocking of the medicament canister relative to the main body of the inhaler.

A medicament delivery device for dispensing discrete doses of medicament comprises: first and second medicament carriers each comprising said doses of medicament contained in a plurality of individual compartments spaced along a carrier strip and sealed by a sealing layer; first and second opening mechanisms each arranged to handle a respective one of the first and second medicament carriers and to open each compartment of the respective medicament carrier by separating the sealing layer from the carrier strip as the medicament carrier is advanced through the device; a take-up spool arranged to wind the separated sealing layers thereon such as to maintain the separated sealing layers in tension, each separated sealing layer having a path of travel between a respective one of the first and second opening mechanisms and the take-up spool; and a tension control element in contact with each of the separated sealing layers, wherein at least a part of the tension control element is arranged to be movable by a biasing force, which is exerted on the tension control element by the separated sealing layers as a result of any inequality in the tensions of the separated sealing layers wound by the take-up spool, to alter the length of the path of travel of each separated sealing layer so as to substantially equalise the tensions in the separated sealing layers.

An inhaler, particularly for a horse, having a reservoir for dispensing a medicament preparation held under excess pressure, with a discharge nozzle for forming an aerosol of the medicament preparation and with a chamber for holding and temporarily storing the aerosol, which is located on the outlet side, a respiratory orifice adapter for a respiratory orifice, particularly a nostril, while according to a first aspect the reservoir is secured in position, at least in the axial direction, according to a second aspect the discharge nozzle has a direction of discharge which is inclined by more than 5° and less than 50° relative to a central axis of the reservoir or a direction of actuation for dispensing the aerosol, and according to a third aspect, the reservoir has a dispensing valve which is arranged at the top in the position of use of the inhaler.