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Observational Study
©The Author(s) 2026.
World J Clin Oncol. Jan 24, 2026; 17(1): 113463
Published online Jan 24, 2026. doi: 10.5306/wjco.v17.i1.113463
Table 3 Self-reported adverse effects of proton pump inhibitors
Side effect
Respondents (%)
Abdominal pain36.5
B12 deficiency24.8
Fatigue20.0
Iron deficiency15.3
Infections9.3
Renal issues4.6
Constipation31.3
None12.5


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