A medicated inhalant dispenser has a plastics material body having a mouthpiece. A pressurized, inhalant source has a canister and a sprout which his moved towards the canister for release of a dose from the canister. The sprout is accommodated in a junction member, which is movable by a cam connected to a pivotal cover for the mouthpiece. Opening of the cover sets a breath actuable kink valve, having a nozzle through which the inhalant is released and a breath flap actuation. Opening also causes the junction member to be lifted for dose dispensing into the kink valve. Breathing in releases the dose for inhalation. A closed sleeve is provided for abutment of the end of the canister as the junction member is moved towards the canister. Between the canister end and an end of the closed sleeve, an adjustable abutment is provided.