83 out of 878 patient study
further indicates Famotidine (PepcidAC)
reduces Covid-19 fatality by 64%
or death/intubation by 51%

https://www.medpagetoday.com/infectiousdisease/covid19/88119

Sample quote

Of 878 total patients, about 10% received famotidine.
Mean age of the whole group was 67, and 55% were men.
About 22% of patients died during hospitalization,
27% required mechanical ventilation,
and 12% met criteria for "combined death and intubation."
...snip...
Use of famotidine was associated with reduced risk of hospital mortality (OR 0.366, 95% CI 0.155-0.862, P=0.021),
as well as a lower risk of the combined death or intubation endpoint (OR 0.495, 95% CI 0.228-0.965, P=0.04).