Figure 4. The Doxycycline-Azithromycin combination shifts MCF7 cancer cells from a highly energetic state to a metabolically quiescent state. We examined the metabolic profile of MCF7 cell monolayers pre-treated with the combination of Doxycycline (1 μM) and Azithromycin (1 μM) for 3 days, using the Seahorse XFe96 analyzer. *p < 0.05. DOX, Doxycycline; AZI, Azithromycin.