What do systematic reviews say?

H2 receptor antagonists vs sucralfate

H2 receptor antagonists showed no clear difference in number of participants requiring blood transfusion compared with sucralfate (low certainty).

• Interventions for preventing upper gastrointestinal bleeding in people admitted to intensive care units 2018 · Cochrane Headline outcomes only
  RR 1.25 [0.7, 2.23]
  9 studies · 1095 participants
  Low