Result: Before interventions (1/1/2020 - 30/9/2020), the prevelance of cDDIs was 0.053% with 5 detected pairs: Simvastatin-Clarithromycin (0.025%), clarithromycin-domperidon (0.013%), clarithromycin-alfuzosin (0.009%), gemfibrozil-simvastatin (0.003%), clarithromycin - Ivabradin (0.002%).