Famotidine and Vitamin B12 interaction
Famotidine and Vitamin B12: NIH and FDA consumer guidance mention this combination without an instruction to avoid it or change the dose.
Minor
Mentioned, no instruction to avoid. Worth knowing; rarely a reason to change anything on its own.
What the FDA labels say
Curated guidance for Vitamin B12
Minor
Long-term acid-reducing therapy interferes with B12 absorption from food and can lead to deficiency.
Curated ruleNIH Office of Dietary Supplements, Vitamin B12
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Open in the checkerNot medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.