Embodiments described here are combinatorial compositions and methods using these compositions for treating melanomas having activated mutations. The compositions comprises combinations of inhibitors of a MAPK pathway, ERK inhibitors, EGFR inhibitors, oxidative phosphorylation (OXPHOS) inhibitors, inhibitors of B-Raf, mitochondrial inhibitors, c-KIT inhibitors, MEK inhibitors and tigecycline or a derivative thereof.