Y40-Y59: Drugs, medicaments and biological substances causing adverse effects in therapeutic use
Y51: Drugs primarily affecting the autonomic nervous system
Subcodes of Y51:
- Y51.0: Anticholinesterase agents
- Y51.1: Other parasympathomimetics [cholinergics]
- Y51.2: Ganglionic blocking drugs, not elsewhere classified
- Y51.3: Other parasympatholytics [anticholinergics and antimuscarinics] and spasmolytics, not elsewhere classified
- Y51.4: Predominantly alpha-adrenoreceptor agonists, not elsewhere classified
- Y51.5: Predominantly beta-adrenoreceptor agonists, not elsewhere classified
- Y51.6: Alpha-adrenoreceptor antagonists, not elsewhere classified
- Y51.7: Beta-adrenoreceptor antagonists, not elsewhere classified
- Y51.8: Centrally acting and adrenergic-neuron-blocking agents, not elsewhere classified
- Y51.9: Other and unspecified drugs primarily affecting the autonomic nervous system
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