Cromolyn sodium nasal spray for hay fever.
D000281:Administration, Intranasal; D002986:Clinical Trials as Topic; D004205:Cromolyn Sodium / Q000008:administration & dosage* / Q000009:adverse effects; D006801:Humans; D006255:Rhinitis, Allergic, Seasonal / Q000188:drug therapy*
D004205:Cromolyn Sodium