Meta-analysis results for all treatments

Treatment relative effect with 95% CI; and degree of certainty (adaptated from GRADE). method

Treament Trials      
Demonstrated or suggested benefit Inconclusive results Uncertain results Safety results
proton pump inhibitors (PPI)3noneinconclusive results for: deaths; clinical deterioration; mechanical ventilation; viral clearance ; ICU admission; superinfection--
H2 blockers2noneinconclusive results for: deaths; mechanical ventilation--
bismuth0- - - -