Not breathing easier.
D018927:Anti-Asthmatic Agents / Q000008:administration & dosage*; D001249:Asthma / Q000188:drug therapy*; D001548:Benzalkonium Compounds / Q000494:pharmacology*; D004336:Drug Antagonism; D004492:Edetic Acid / Q000494:pharmacology*; D006801:Humans; D009330:Nebulizers and Vaporizers; D011310:Preservatives, Pharmaceutical / Q000494:pharmacology*
D018927:Anti-Asthmatic Agents; D001548:Benzalkonium Compounds; D011310:Preservatives, Pharmaceutical; D004492:Edetic Acid