Y40 Systemic antibiotics adverse effect

Y41 Other systemic anti-infectives and antiparasitics adverse effect

Y42 Hormones and their synthetic substitutes and antagonists adverse effect, not elsewhere classified

Y43 Primarily systemic agents adverse effect

Y44 Agent primarily affecting blood constituents adverse effect

Y45 Analgesics, antipyretics and anti-inflammatory drugs adverse effect

Y46 Antiepileptics and antiparkinsonism drugs adverse effect

Y47 Sedatives, hypnotics and antianxiety drugs adverse effect

Y48 Anaesthetics and therapeutic gases adverse effect

Y49 Psyhotropivc drugs, not elsewhere classified

Y50 Central nervous system stimulants adverse effect, not elsewhere classified

Y51 Drugs primarily affecting the autonomic nervous system adverse effect

Y52 Agents primarily affecting the cardiovascular system adverse effect

Y53 Agents primarily affecting the gastrointestinal system adverse effect

Y54 Agents primarily affecting water-balance and mineral and uric acid metabolism adverse effect

Y55 Agents primarily acying on smooth and skeletal muscles and the respiratory system adverse effect

Y56 Topical agents primarily affecting skin and mucous membrane and ophthalmological otorhinolaryngological and dental drugs adverse effect

Y57 Other and unspecified drugs and medicaments adverse effect

Y58 Bacterial vaccines adverse effect

Y59 Other and unspecified vaccines and biological substances adverse effect