Structure-activity relationships of drugs affecting the lungs.
D018926:Anti-Allergic Agents; D006634:Histamine H1 Antagonists / Q000494:pharmacology*; D008168:Lung / Q000494:pharmacology*; D013329:Structure-Activity Relationship; D013566:Sympathomimetics / Q000494:pharmacology*; D014970:Xanthines / Q000494:pharmacology*
D018926:Anti-Allergic Agents; D006634:Histamine H1 Antagonists; D013566:Sympathomimetics; D014970:Xanthines
ANTIHISTAMINICS/pharmacology; LUNG/pharmacology; SYMPATHOMIMETICS/pharmacology; XANTHINES/pharmacology