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letter
. 2010 Mar;69(3):317–318. doi: 10.1111/j.1365-2125.2009.03584.x

Table 1.

Reports and ADRs of suspected medicines (ATC level 1) by therapeutic group

ADRs Unlabelled ADRs
ATC groups No. of reports N % ADRs/report N %
Alimentary tract and metabolism (A) 37 90 11 2.4 16 8
Blood and blood-forming organs (B) 3 7 <1 2.3 0 0
Cardiovascular system (C) 41 76 10 1.9 10 5
Dermatological (D) 11 22 3 2 14 7
Genitourinary system and sex hormones (G) 13 25 3 1.9 16 9
Systemic hormonal preparations (H) 9 26 3 2.9 12 6
Anti-infective for systemic use (J) 25 59 7 2.4 15 8
Antineoplastic and immunomodulating agents (L) 14 33 4 2.4 1 <1
Musculoskeletal system (M) 33 53 7 1.6 0 0
Nervous system (N) 116 316 40 2.7 64 34
Antiparasitic products (P) 3 5 <1 1.7 2 1
Respiratory system (R) 26 59 7 2.3 19 10
Sensory organs (S) 2 5 <1 1.5 3 2
Herbal products 7 18 2 2.6 16 9
Total 340 794 2.3 188 100

ADR, adverse drug reaction; ATC, Anatomical Therapeutic Chemical.