Dry Mouth is a common condition associated with inhalation of marijuana smoke, although researchers indicate that smoking methods are not the sole cause of this condition. Salivary flow is shown to be significantly decreased by oral administration of Marinol, synthetic THC in pill form. Water or other liquid beverages bring instant relief.
Related sections: Tear Ducts.
 Mattes, Shaw, and Engleman, “Effects of cannabinoids (marijuana) on taste intensity and hedonic ratings and salivary flow of adults.” Chemical Senses, Vol. 19, No. 2, pp. 125-140, 1994