The FDA is providing recommendations and sharing important information with health care providers, pharmacists, compounders, patients and caregivers about the risks of using medications delivered into the spinal fluid to treat or manage pain that are not approved for use with the implanted pumps.

http://www.fda.gov/medical-devices/safety-communications/use-caution-implanted-pumps-intrathecal-administration-medicines-pain-management-fda-safety