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)6noneinconclusive results for: conversion to SARS-CoV- 2–positive status via NP swab; new illness compatible with Covid-19 ; symptomatic Covid-19--
H2 blockers1none-

demonstrated 15 % decrease in symptomatic Covid-19 but the degree if certainty is unassessable

-
bismuth0- - - -