De følgende kategorier benyttes: meget almindelig (> 1/ 10); almindelig (> 1/ 100, < 1/ 10); ualmindelig (> 1/ 1000, < 1/ 100); sjælden (> 1/ 10000, < 1/ 1000); meget sjælden (< 1/ 10000); ikke kendt (kan ikke estimeres ud fra forhåndenværende data).
Within the organ system classes, adverse reactions are listed under headings of frequency (number of patients expected to experience the reaction), using the following categories: very common (> 1/ 10); common (> 1/ 100 ,< 1/10); uncommon (> 1/1000 ,< 1/100); rare (> 1/10,000, < 1/ 1000); very rare (< 1/10 ,000); not known (could not be accurately estimated through clinical studies).