Figure 4. Minocycline potentiates systemic morphine analgesia.
Minocycline (25 mg/kg
and 50 mg/kg ◆ gavages) significantly potentiated morphine (4 mg/kg, ■) analgesia, whilst saline treatment had no effect (○). Minocycline potentiated the onset, peak and duration of analgesia (A) as well as the total area under the analgesia curve (B). A one-way ANOVA with Bonferroni posthoc test comparing morphine + water with each other data group. ** = P < 0.01; *** = P < 0.001.