During the 120 days of their lifespan, RBCs are charged with carrying oxygen from lungs through the oxyhemoglobin (Fe 2+ ) and transferring it to tissues, including those in the brain, which is characterized by a high oxidative milieu [9]
doi: 10.1093/jn/nxaa094 119 SuzukiT.TakahashiJ.YamamotoM
When these compounds are put together into a solution that is injected into the bloodstream, it enters the body without any possibility of facing dilution or being inefficiently absorbed into the gut

Al-Tammemi Faculty of Pharmacy, Philadelphia University, Amman, Jordan Yazan Al Thaher School of Pharmacy, Cardiff University, Cardiff, UK Yazan Al Thaher Research Group in Health Economics, Universidad de Cartagena (University of Cartagena), Cartagena, Colombia Nelson Alvis-Guzman Research Group in Hospital Management and Health Policies, Universidad de la Costa (University of the Coast), Barranquilla, Colombia Nelson Alvis-Guzman Department of Rehabilitation Sciences, Jordan University of Science and Technology, Irbid, Jordan Mohammad Al-Wardat Fakeeh College for Medical Sciences, Fakeeh College for Medical Sciences, Jeddah, Saudi Arabia Yaser Mohammed Al-Worafi College of Medical Sciences, Azal University for Human Development, Sanaa, Yemen Yaser Mohammed Al-Worafi Department of Pediatrics, Cleveland Clinic, Cleveland, OH, USA Hany Aly Department of Pharmaceutical Sciences, Qatar University, Doha, Qatar Karem H