A method for monitoring the filling of a medication dispenser that comprises a first and a second container for receiving a strip of medication packages. In the method a taking time of the first medication package of the second strip inserted into the second container is compared with a taking time of the last medication package of the first strip inserted into the first container, in order to determine if the delivery of medication packages can be continued after the first strip with the second strip. The invention also relates to a medication dispenser.