oz. = ounces. * It can be difficult to estimate the number of standard drinks in a single mixed drink made with hard liquor. Depending on factors such as the type of spirits and the recipe, a mixed drink can contain from one to three or more standard drinks.
Reproduced with content from: National Institutes on Alcohol Abuse and Alcoholism. Rethinking Drinking: Alcohol and your health. Available at: http://rethinkingdrinking.niaaa.nih.gov.