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Home   COVID-19 treatment studies for Vitamin C  COVID-19 treatment studies for Vitamin C  C19 studies: Vitamin C  Vitamin C   Select treatmentSelect treatmentTreatmentsTreatments
Aspirin Metformin
Bamlanivimab Molnupiravir
Bromhexine Nigella Sativa
Budesonide Nitazoxanide
Casirivimab/i.. Povidone-Iod..
Colchicine Probiotics
Conv. Plasma Proxalutamide
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Hydroxychloro.. Vitamin A
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Vitamin C study #31 of 34   All Outcomes
7/26 Late treatment study
Tan et al., QJM, doi:10.1093/qjmed/hcab184 (Peer Reviewed)
Efficacy of diammonium glycyrrhizinate combined with vitamin C for treating hospitalized COVID-19 patients: a retrospective, observational stud
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PSM retrospective 207 hospitalized patients in China, 46 treated with diammonium glycyrrhizinate and vitamin C, showing lower risk of ARDS with treatment.
Tan et al., 7/26/2021, retrospective, China, Asia, peer-reviewed, 7 authors, this trial uses multiple treatments in the treatment arm (combined with diammonium glycyrrhizinate) - results of individual treatments may vary.
risk of combined intubation/death, 24.5% lower, RR 0.75, p = 0.74, treatment 1 of 46 (2.2%), control 14 of 115 (12.2%), odds ratio converted to relative risk.
risk of ARDS, 73.3% lower, RR 0.27, p = 0.002, treatment 7 of 46 (15.2%), control 41 of 115 (35.7%), odds ratio converted to relative risk.
Effect extraction follows pre-specified rules prioritizing more serious outcomes. For an individual study the most serious outcome may have a smaller number of events and lower statistical signficance, however this provides the strongest evidence for the most serious outcomes when combining the results of many trials.
All 34 studies   All Outcomes
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