1. Percentages determined from labels and other sources, including Alcohol Content in Over the Counter Medications, West Baltimore Group of AA web site; Know What You’re Taking! South Dakota State University, Drinking Under the Influence Program web site.
2. Levinthal, Charles F. Drugs, Behavior, and Modern Society. Boston, Massachusetts: Allyn and Bacon, 1996, p. 231.
3. U.S. Pharmacopeial Convention. United States Pharmacopeia. Rockville, MD: U.S. Pharmacopeial Convention, 1995.