Table 4.

Content of OAS items: each is rated on a five-point scale

1	Painful to snort or inject
2	Ability to conceal or hide
3	Duration of withdrawal symptoms
4	Messy to use
5	Ability to change into another form for recreational use
6	Presence of toxic metabolites
7	Solubility in water, vinegar, alcohol, etc
8	This medication's duration of effect
9	Short onset (works quickly)
10	Potency compared to morphine
11	Contains waxes, gums, binders, fillers or other impurities
12	Contains an opioid antagonist
13	Divisible into smaller doses
14	Ability to use in different ways (snort, smoke, eat, IV, etc) to get different highs
15	Designed in a way that is difficult to abuse to get a high
16	This medication comes in high doses
17	Drug considered to have high (or low) potential for abuse (DEA classification)

Note: The specific item for each drug is worded so that a higher rating reflects a greater degree of 'attractiveness.'