Research Database

To discover whether oral vitamin C in doses of 200 mg or more daily reduces the incidence, duration, or severity of the common cold when used as prophylaxis or...

To determine whether oral vitamin C doses of at least 0.2 g daily reduce the incidence, duration, or severity of the common cold when used as prophylaxis or...

Investigate whether vascular peroxidase 1 (VPO1) generates hypochlorous acid (HOCl) and its role in host defense.

Effect of zinc gluconate or zinc acetate lozenges on duration and severity of experimental and natural colds.

To examine a commercially available zinc acetate lozenge for treating the common cold.

To estimate the effect of zinc acetate lozenges on the rate of recovery from common colds using survival analysis on individual patient data.

Study aimed to determine safety and efficacy of 0.5% povidone-iodine nasal spray (Nasodine) for treating common cold in adults.

Investigated whether nitric oxide nasal spray (NONS) accelerates reduction of SARS-CoV-2 RNA load in mild COVID-19 patients compared to saline placebo.

Study aimed to investigate the virucidal activity of Thymogen nasal spray against respiratory syncytial virus and parainfluenza virus in vitro.