Table 1

Compounds/formulations Included in the analyses

Generic Name

Immediate release

Extended release or long acting


hydrocodone

IR

NA


oxycodone

IR

ER


fentanyl

IR

ER/transdermal


hydromorphone

IR

Not available in US in 2009


methadone

NA

Long Acting


morphine

IR

ER


oxymorphone

IR

ER


Butler et al. Harm Reduction Journal 2011 8:29   doi:10.1186/1477-7517-8-29

Open Data