Granulocyte colony-stimulating factor (G-CSF; a stem cell enhancer and facilitator), DETC-MeSO (a glutamate receptor partial antagonist and anti-excitotoxicity agent), and sulindac (a potent anti-oxidant and anti-inflammatory agent) each can protect brain tissue exposed to a cerebral ischemia/reperfusion injury, and minimize the size of infarcts that develop as a result of the injury. When administered in combination, these agents are effective at protecting brain tissue and minimizing the size of an infarct resulting from the injury at much lower concentrations compared to using a single agent.