Guaiphenesin and iodide.
D001249:Asthma / Q000188:drug therapy; D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D006140:Guaifenesin / Q000627:therapeutic use*; D006801:Humans; D007454:Iodides / Q000627:therapeutic use*; D008171:Lung Diseases / Q000188:drug therapy; D013726:Terbutaline / Q000627:therapeutic use
D007454:Iodides; D006140:Guaifenesin; D013726:Terbutaline