Gelsemium.
Glycerin: as nutrient in place of cod-liver oil, locally to mouth in the last stages to relieve dryness and pain.
Glycerinophosphates.
Gold Iodide.
Guaiacol and salts.
Guaiacum.
Guethol.
Homatropine Hydrobromate.
Hydrastinine Hydrochlorate.
Hydrogen Dioxide.