Adverse Drug Reaction Classification System

Number of standard ADR terms: 10,821 System Organ Classes (SOCs): 27 High Level Group Terms (HLGTs): 335 High Level Terms (HLTs): 1,620 Preferred Terms (PTs): 5,160 Number of ADRs with severity grades: 1,330 System Organ Classes (SOCs): 26 High Level Group Terms (HLGTs): 186 High Level Terms (HLTs): 495 Preferred Terms (PTs): 951 Number of synonyms: 61,113 Drug synonyms: 38,107 From MedDRA: 7,829 Number of Drugs: 2,593 From DailyMed: 1,789 From SIDER2: 1,473 From FAERS: 1,399 Number of Drug-ADR pairs: 669,104 With frequency information: 99,026 With frequency of ‘Very Common’ (>=10%): 36,183 With frequency of ‘Common’ (1%-10%): 78,910 With frequency of ‘Uncommon’ (0.1%-1%): 9,014 With frequency of ‘Rare’ (0.01%-0.1%): 285 With frequency of ‘Very rare’ (<0.01%): 42 Number of ADR-Protein pairs: 1,433