In a recent study, researchers from the Tabriz University of Medical Sciences in Iran examine the effects of intravenous vitamin C on critically ill intensive care unit (ICU) patients with severe pneumonia. Published in the BMC Infectious Diseases journal, the study found that treatment with vitamin C was safe and could decrease inflammation, the duration of mechanical ventilation, and use of vasopressor medications such as norepinephrine (noradrenaline). Among the 40 patients in the control group, 11 deaths occurred. The group of 40 patients given vitamin C saw just 6 deaths. The study results add to the growing body of evidence supporting the use of vitamin C in the treatment of respiratory infections.