The State Institute for Drug Control (SÚKL) received information from Brazilian regulatory authorities about the occurrence of counterfeit Dysport 500U medicines. Three batches are affected with numbers P08191 (expiring 04/2029), P08192 (expiring 05/2029), and P22368 (expiring 02/2029). Dysport 500SU is registered in the Czech Republic through a national procedure. These batches were not identified in regular reports of distributed medicines in the Czech Republic. The representative of the marketing authorization holder confirmed that these batches were not supplied to the market in the Czech Republic. SÚKL requests all operators to immediately provide information if they encountered these batches of Dysport 500U medicine.