piperazine R03DA10 Bufylline R03DA11 Doxofylline R03DA12 Mepyramine theophyllinacetate 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 R03DC53 Montelukast, combinations R03DX Other systemic drugs for obstructive airway diseases R03DX01 Amlexanox R03DX02 Eprozinol R03DX03 Fenspiride R03DX05 Omalizumab R03DX06 Seratrodast R03DX07 Roflumilast R03DX08 Reslizumab R03DX09 Mepolizumab R03DX10 Benralizumab R03DX11 Tezepelumab References R03