R03DA54 theophylline, combinations excl. psycholeptics

R RESPIRATORY SYSTEM DRUGS

R03 DRUGS FOR OBSTRUCTIVE AIRWAY DISEASES

R03D OTHER SYSTEMIC DRUGS FOR OBSTRUCTIVE AIRWAY DISEASES in ATC

R03DA Xanthines, systemic for obstructive airway disease

R03DA54 theophylline, combinations excl. psycholeptics