# ATC รหัส R03
ส่วนของ ระบบจำแนกประเภทยาตามการรักษาทางกายวิภาคศาสตร์ (Anatomical Therapeutic Chemical Classification System)

R ระบบทางเดินหายใจ (Respiratory system)

 R03A Adrenergics, inhalants 
 R03AA Alpha- and beta-adrenoreceptor agonists 
 R03AA01 Epinephrine

 R03AB Non-selective beta-adrenoreceptor agonists 
 R03AB02 Isoprenaline
 R03AB03 Orciprenaline

 R03AC Selective beta-2-adrenoreceptor agonists 
 R03AC02 Salbutamol
 R03AC03 Terbutaline
 R03AC04 Fenoterol
 R03AC05 Rimiterol
 R03AC06 Hexoprenaline
 R03AC07 Isoetarine
 R03AC08 Pirbuterol
 R03AC09 Tretoquinol
 R03AC10 Carbuterol
 R03AC11 Tulobuterol
 R03AC12 Salmeterol
 R03AC13 Formoterol
 R03AC14 Clenbuterol
 R03AC15 Reproterol
 R03AC16 Procaterol
 R03AC17 Bitolterol

 R03AH Combinations of adrenergics 

 R03AK Adrenergics and other drugs for obstructive airway diseases 
 R03AK01 Epinephrine and other drugs for obstructive airway diseases
 R03AK02 Isoprenaline and other drugs for obstructive airway diseases
 R03AK03 Fenoterol and other drugs for obstructive airway diseases
 R03AK04 Salbutamol and other drugs for obstructive airway diseases
 R03AK05 Reproterol and other drugs for obstructive airway diseases
 R03AK06 Salmeterol and other drugs for obstructive airway diseases
 R03AK07 Formoterol and other drugs for obstructive airway diseases

 R03B Other drugs for obstructive airway diseases, inhalants 
 R03BA Glucocorticoids 
 R03BA01 Beclometasone
 R03BA02 Budesonide
 R03BA03 Flunisolide
 R03BA04 Betamethasone
 R03BA05 Fluticasone
 R03BA06 Triamcinolone
 R03BA07 Mometasone
 R03BA08 Ciclesonide

 R03BB Anticholinergics 
 R03BB01 Ipratropium bromide
 R03BB02 Oxitropium bromide
 R03BB03 Stramoni preparations
 R03BB04 Tiotropium bromide

 R03BC Antiallergic agents, excluding corticosteroids 
 R03BC01 Cromoglicic acid
 R03BC03 Nedocromil

 R03BX Other drugs for obstructive airway diseases, inhalants 
 R03BX01 Fenspiride

 R03C Adrenergics for systemic use 
 R03CA Alpha- and beta-adrenoreceptor agonists 
 R03CA02 Ephedrine

 R03CB Non-selective beta-adrenoreceptor agonists 
 R03CB01 Isoprenaline
 R03CB02 Methoxyphenamine
 R03CB03 Orciprenaline
 R03CB51 Isoprenaline, combinations
 R03CB53 Orciprenaline, combinations

 R03CC Selective beta-2-adrenoreceptor agonists 
 R03CC02 Salbutamol
 R03CC03 Terbutaline
 R03CC04 Fenoterol
 R03CC05 Hexoprenaline
 R03CC06 Isoetarine
 R03CC07 Pirbuterol
 R03CC08 Procaterol
 R03CC09 Tretoquinol
 R03CC10 Carbuterol
 R03CC11 Tulobuterol
 R03CC12 Bambuterol
 R03CC13 Clenbuterol
 R03CC14 Reproterol
 R03CC53 Terbutaline, combinations

 R03CK Adrenergics and other drugs for obstructive airway diseases 

 R03D Other systemic drugs for obstructive airway diseases 
 R03DA Xanthines 
 R03DA01 Diprophylline
 R03DA02 Choline theophyllinate
 R03DA03 Proxyphylline
 R03DA04 Theophylline
 R03DA05 Aminophylline
 R03DA06 Etamiphylline
 R03DA07 Theobromine
 R03DA08 Bamifylline
 R03DA09 Acefylline piperazine
 R03DA10 Bufylline
 R03DA11 Doxofylline
 R03DA20 Combinations of xanthines
 R03DA51 Diprophylline, combinations
 R03DA54 Theophylline, combinations excluding psycholeptics
 R03DA55 Aminophylline, combinations
 R03DA57 Theobromine, combinations
 R03DA74 Theophylline, combinations with psycholeptics

 R03DB Xanthines and adrenergics 
 R03DB01 Diprophylline and adrenergics
 R03DB02 Choline theophyllinate and adrenergics
 R03DB03 Proxyphylline and adrenergics
 R03DB04 Theophylline and adrenergics
 R03DB05 Aminophylline and adrenergics
 R03DB06 Etamiphylline and adrenergics

 R03DC Leukotriene receptor antagonists 
 R03DC01 Zafirlukast
 R03DC02 Pranlukast
 R03DC03 Montelukast
 R03DC04 Ibudilast

 R03DX Other systemic drugs for obstructive airway diseases 
 R03DX01 Amlexanox
 R03DX02 Eprozinol
 R03DX03 Fenspiride
 R03DX05 Omalizumab
 R03DX06 Seratrodast
 R03DX07 Roflumilast