Gaduol: a most useful remedy.
Galbanum: like ammoniac.
Grindelia: expectorant when the cough is troublesome.
Guaiacol.
Guaiacol Vapor.
Hydrastis: in chronic coryza.
Hypnal: for cough.
Iodides and Iodine: as inhalation or liniment to chest, to lessen expectoration in chronic bronchitis; in the hoarse hollow cough of infants after measles.
Iodoform.
Ipecacuanha: the wine as spray in much expectoration; in emetic doses in children where the bronchioles are blocked up with mucus.