Antibiotics for respiratory illness.
D001249:Asthma / Q000188:drug therapy*; D002908:Chronic Disease; D004318:Doxycycline / Q000627:therapeutic use; D006801:Humans; D010118:Oxytetracycline / Q000627:therapeutic use*; D012141:Respiratory Tract Infections / Q000188:drug therapy
D004318:Doxycycline; D010118:Oxytetracycline