STADA Arzneimittel AG from Germany, the holder of the marketing authorization, informs in cooperation with the State Institute for Drug Control about an error on the outer packaging of batch no. L260252 of the medicine Fenroo. An incorrect Product Code (PC) number was printed on the package. This concerns Fenroo 100 microgram tablets without coating in a package of 28 pieces. The information letter was issued to alert users about this error.