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. Author manuscript; available in PMC: 2011 Mar 1.
Published in final edited form as: Drug Alcohol Depend. 2009 Dec 9;107(2-3):261–263. doi: 10.1016/j.drugalcdep.2009.10.010

Fig. 1.

Fig. 1

Repeated ceftriaxone (CTX) inhibits antinociceptive tolerance to morphine (MOR). Data are expressed as mean % MPE ± S.E.M. determined 60 min following MOR administration on days 1, 4 and 7 of repeated MOR exposure. N = 6–8 rats/group. Panel A) *P < 0.05 compared to saline (SAL) + SAL. Panel B) +P < 0.05 compared to SAL + MOR.