Study: NCT04621149

Intervention type: OTHER
Group type: ACTIVE_COMPARATOR
Intervention: chlorine dioxide
Description: chlorine dioxide is an antimicrobial agent used for a variety of purposes including as a water purification product, a disinfectant on food, etc.

Intervention type: OTHER
Group type: ACTIVE_COMPARATOR
Intervention: chlorine dioxide
Description: chlorine dioxide is an antimicrobial agent used for a variety of purposes including as a water purification product, a disinfectant on food, etc.

Intervention type: OTHER
Group type: ACTIVE_COMPARATOR
Intervention: chlorine dioxide
Description: chlorine dioxide is an antimicrobial agent used for a variety of purposes including as a water purification product, a disinfectant on food, etc.

Intervention type: OTHER
Group type: ACTIVE_COMPARATOR
Intervention: chlorine dioxide
Description: chlorine dioxide is an antimicrobial agent used for a variety of purposes including as a water purification product, a disinfectant on food, etc.

Intervention type: DIETARY_SUPPLEMENT
Group type: ACTIVE_COMPARATOR
Intervention: zinc acetate
Description: zinc acetate lozenges have been suggested to have antiviral properties

Intervention type: DIETARY_SUPPLEMENT
Group type: ACTIVE_COMPARATOR
Intervention: zinc acetate
Description: zinc acetate lozenges have been suggested to have antiviral properties

Intervention type: DIETARY_SUPPLEMENT
Group type: ACTIVE_COMPARATOR
Intervention: zinc acetate
Description: zinc acetate lozenges have been suggested to have antiviral properties

Intervention type: DIETARY_SUPPLEMENT
Group type: ACTIVE_COMPARATOR
Intervention: zinc acetate
Description: zinc acetate lozenges have been suggested to have antiviral properties

Intervention type: DRUG
Group type: ACTIVE_COMPARATOR
Intervention: Famotidine
Description: famoitidine is a histamine-2 blocker sold over the counter to reduce stomach acid

Intervention type: DRUG
Group type: ACTIVE_COMPARATOR
Intervention: Famotidine
Description: famoitidine is a histamine-2 blocker sold over the counter to reduce stomach acid

Intervention type: DRUG
Group type: ACTIVE_COMPARATOR
Intervention: Famotidine
Description: famoitidine is a histamine-2 blocker sold over the counter to reduce stomach acid

Intervention type: DRUG
Group type: ACTIVE_COMPARATOR
Intervention: Famotidine
Description: famoitidine is a histamine-2 blocker sold over the counter to reduce stomach acid

Intervention type: OTHER
Group type: PLACEBO_COMPARATOR
Intervention: placebo
Description: filtered water

Intervention type: OTHER
Group type: ACTIVE_COMPARATOR
Intervention: placebo
Description: filtered water

Intervention type: OTHER
Group type: ACTIVE_COMPARATOR
Intervention: placebo
Description: filtered water

Intervention type: OTHER
Group type: ACTIVE_COMPARATOR
Intervention: placebo
Description: filtered water

Intervention type: DIETARY_SUPPLEMENT
Group type: ACTIVE_COMPARATOR
Intervention: lactoferrin, green tea extract
Description: lactoferrin and green tea extract are dietary supplements

Intervention type: DIETARY_SUPPLEMENT
Group type: ACTIVE_COMPARATOR
Intervention: lactoferrin, green tea extract
Description: lactoferrin and green tea extract are dietary supplements

Intervention type: DIETARY_SUPPLEMENT
Group type: ACTIVE_COMPARATOR
Intervention: lactoferrin, green tea extract
Description: lactoferrin and green tea extract are dietary supplements

Intervention type: DIETARY_SUPPLEMENT
Group type: ACTIVE_COMPARATOR
Intervention: lactoferrin, green tea extract
Description: lactoferrin and green tea extract are dietary supplements