Did you look for oxycodone hydrochloride ? I haven't access to Hale's but it
must be in there somewhere.
Found this at http://www.pain.com/painexpo/exhibits/purdue/oxypi.cfm :
"Low concentrations of oxycodone have been detected in breast milk.
Withdrawal symptoms can occur in breast-feeding infants when maternal
administration of an opioid analgesic is stopped. Ordinarily, nursing should
not be undertaken while a patient is receiving OxyContin since oxycodone may
be excreted in the milk." Depends what is meant by "ordinarily", I guess.
Also found this website which has other info:
http://leflaw.com/investigations/oxycontin/#clin
Google has more.

Best wishes
Jessica
Trainee Supporter, The Breastfeeding Network
London, UK

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