There are many causes of dry mouth. Dry mouth most commonly occurs as a side effect of medications that cause decreased saliva production, including high blood pressure medications, antihistamines, antidepressants, diuretics, nonsteroidal anti-inflammatories, narcotics, and many others.
Liquid diet: The Liquid diet is the restriction of solid food intake, and replacement of solid food with liquids. In hospitals, liquid diets are prescribed by doctors for a number of reasons for patients who are unable to consume solid foods. Liquid diets may be prescribed following surgery or as a preparation for certain medical procedures.
Define clear liquids: clear liquids are any food that is not solid at room ; body temperature that will allow sunlight to pass through: ice pops, jello, broth without particles, juices without particulates, water, light tea. Avoid red-dyed foods that may leave residue that looks like blood to the colonoscopist.