An effective oral medication for long term bronchodilation.
D000328:Adult; D001249:Asthma / Q000188:drug therapy*; D001991:Bronchitis / Q000188:drug therapy*; D006801:Humans; D008875:Middle Aged; D011014:Pneumonia / Q000188:drug therapy*; D011656:Pulmonary Emphysema / Q000188:drug therapy*; D013806:Theophylline / Q000627:therapeutic use*
D013806:Theophylline