A discharge device comprising - a dispenser for discharging pharmaceutical and/or cosmetical liquids, with - a housing, - a liquid reservoir and - an outlet opening through which the liquid can be discharged into a surrounding atmosphere, and - a protective cap with an inner cap and an outer cap, wherein - the inner cap is provided for repeated detachment from and attachment to the housing and has at least one ventilation opening for communication between an interior of the protective cap and an external environment, and - before a first use, the outer cap is mounted on the inner cap in a first position in which the inner cap and the outer cap are sealingly in contact with each other and the at least one ventilation opening is separated in an airtight and germproof manner from the environment, and - the outer cap is movable relative to the inner cap from the first position to at least a second position in which the inner cap and the outer cap are not sealingly in contact with each other and the at least one ventilation opening communicates with the environment, wherein - the outer cap has a blocking element that counteracts a movement of the outer cap relative to the inner cap to the first position, and - the at least one blocking element is adjustable between a blocking position, in which a movement of the outer cap relative to the inner cap to the first position is blocked, and a release position, in which the outer cap is movable relative to the inner cap to the first position, wherein the blocking element is forced into the blocking position, said discharge device being characterized in that - the inner cap has at least one complementary opening, wherein, in order to allow a movement of the outer cap relative to the inner cap to the first position, the at least one blocking element can be guided into the at least one complementary opening in the release position. - a dispenser for discharging pharmaceutical and/or cosmetical liquids, with - a housing, - a liquid reservoir and - an outlet opening through which the liquid can be discharged into a surrounding atmosphere, and - a housing, - a liquid reservoir and - an outlet opening through which the liquid can be discharged into a surrounding atmosphere, - a protective cap with an inner cap and an outer cap, wherein - the inner cap is provided for repeated detachment from and attachment to the housing and has at least one ventilation opening for communication between an interior of the protective cap and an external environment, and - before a first use, the outer cap is mounted on the inner cap in a first position in which the inner cap and the outer cap are sealingly in contact with each other and the at least one ventilation opening is separated in an airtight and germproof manner from the environment, and - the outer cap is movable relative to the inner cap from the first position to at least a second position in which the inner cap and the outer cap are not sealingly in contact with each other and the at least one ventilation opening communicates with the environment, wherein - the outer cap has a blocking element that counteracts a movement of the outer cap relative to the inner cap to the first position, and - the at least one blocking element is adjustable between a blocking position, in which a movement of the outer cap relative to the inner cap to the first position is blocked, and a release position, in which the outer cap is movable relative to the inner cap to the first position, wherein the blocking element is forced into the blocking position, said discharge device being characterized in that - the inner cap has at least one complementary opening, wherein, in order to allow a movement of the outer cap relative to the inner cap to the first position, the at least one blocking element can be guided into the at least one complementary opening in the release position. - the inner cap is provided for repeated detachment from and attachment to the housing and has at least one ventilation opening for communication between an interior of the protective cap and an external environment, and - before a first use, the outer cap is mounted on the inner cap in a first position in which the inner cap and the outer cap are sealingly in contact with each other and the at least one ventilation opening is separated in an airtight and germproof manner from the environment, and - the outer cap is movable relative to the inner cap from the first position to at least a second position in which the inner cap and the outer cap are not sealingly in contact with each other and the at least one ventilation opening communicates with the environment, - the outer cap has a blocking element that counteracts a movement of the outer cap relative to the inner cap to the first position, and - the at least one blocking element is adjustable between a blocking position, in which a movement of the outer cap relative to the inner cap to the first position is blocked, and a release position, in which the outer cap is movable relative to the inner cap to the first position, wherein the blocking element is forced into the blocking position, - the inner cap has at least one complementary opening, wherein, in order to allow a movement of the outer cap relative to the inner cap to the first position, the at least one blocking element can be guided into the at least one complementary opening in the release position.