Toilet cover with a dosing dispenser for dispensing pre-portioned products, the dosing dispenser having a mounting area to secure the dispenser to the underside of the toilet cover; a trapezoidal storage container for receiving the pre-portioned products; and a dispensing device for dispensing at least one of the pre-portioned products wherein the output device has an intermediate storage channel connected to the storage container for the roll path of the pre-proportioned products in a first direction of the roll path; an output channel connected to the intermediate storage channel for the roll path of the pre-portioned products in a second direction of the roll path; and a partition wall separating the intermediate storage channel and the output channel, wherein (i) the intermediate storage channel is arranged parallel and adjacent to the output channel; and (ii) the partition wall has a connecting region (51a, or 51b) through which the pre-portioned products can pass from the intermediate storage channel into the discharge channel, so that in the first position of the toilet cover at least one pre-portioned product enters the intermediate storage channel following gravity and partially fills it, and when the toilet cover is moved from the first to a second position, the at least one pre-portioned product is discharged through the discharge channel into a toilet bowl following the force of gravity. a mounting area to secure the dispenser to the underside of the toilet cover; a trapezoidal storage container for receiving the pre-portioned products; and a dispensing device for dispensing at least one of the pre-portioned products wherein the output device has an intermediate storage channel connected to the storage container for the roll path of the pre-proportioned products in a first direction of the roll path; an output channel connected to the intermediate storage channel for the roll path of the pre-portioned products in a second direction of the roll path; and a partition wall separating the intermediate storage channel and the output channel, wherein (i) the intermediate storage channel is arranged parallel and adjacent to the output channel; and (ii) the partition wall has a connecting region (51a, or 51b) through which the pre-portioned products can pass from the intermediate storage channel into the discharge channel, so that in the first position of the toilet cover at least one pre-portioned product enters the intermediate storage channel following gravity and partially fills it, and when the toilet cover is moved from the first to a second position, the at least one pre-portioned product is discharged through the discharge channel into a toilet bowl following the force of gravity. (i) the intermediate storage channel is arranged parallel and adjacent to the output channel; and (ii) the partition wall has a connecting region (51a, or 51b) through which the pre-portioned products can pass from the intermediate storage channel into the discharge channel, so that in the first position of the toilet cover at least one pre-portioned product enters the intermediate storage channel following gravity and partially fills it, and when the toilet cover is moved from the first to a second position, the at least one pre-portioned product is discharged through the discharge channel into a toilet bowl following the force of gravity.