Figure 1.

Distribution of suspected drugs according to Anatomical-Therapeutic-Chemical (ATC) drug classification in the group of adverse drug reaction reports not caused by drug-drug interactions (open bars) and the group of adverse drug reaction reports caused by drug-drug interactions (closed bars). ATC groups: A – Alimentary Tract and Metabolism; B – Blood and Blood Forming Organs; C – Cardiovascular System Drugs; D – Dermatologicals; G – Genito Urinary System and Sex Hormones; H – Systemic Hormonal Preparations, Excluding Sex Hormones and Insulins, Genito Urinary System and Sex Hormones; J – Antiinfectives for Systemic Use; L – Antineoplastic and Immunomodulating Medications; M – Musculo-Skeletal System; N – Nervous System; P – Antiparasitic Products, Insecticides and Repellents; R – Respiratory System; S – Sensory Organs; V – Various.