Theophylline and bronchospasm.
D001986:Bronchial Spasm / Q000188:drug therapy*; D006801:Humans; D010726:Phosphodiesterase Inhibitors; D011448:Prostaglandin Antagonists; D013806:Theophylline / Q000494:pharmacology* / Q000627:therapeutic use
D010726:Phosphodiesterase Inhibitors; D011448:Prostaglandin Antagonists; D013806:Theophylline