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Drug interactions

Cyanocobalamin + Linagliptin-metformin

Severity: Minor

Cyanocobalamin and Linagliptin-metformin: minor interaction.

Last updated

For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.

Summary

Long-term metformin use can lower vitamin B12 absorption and serum levels, occasionally causing deficiency and neuropathy or anemia. Cyanocobalamin supplementation is used to correct this rather than being harmed by it.

What this interaction means in plain words

Cyanocobalamin and Linagliptin-metformin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.

Cyanocobalamin belongs to Miscellaneous; Linagliptin-metformin belongs to Endocrine.

Evidence level: High

Why it happens

Metformin impairs calcium-dependent ileal absorption of the vitamin B12-intrinsic factor complex.

What to do

Check vitamin B12 periodically in long-term metformin users, particularly with anemia or neuropathy, and supplement if deficient.

What to ask your pharmacist

  • Is there anything I should notice while taking both?
  • Do I need to tell my doctor at the next visit?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Cyanocobalamin with Linagliptin-metformin?

MediHelp rates the interaction as minor. Cyanocobalamin and Linagliptin-metformin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Long-term metformin use can lower vitamin B12 absorption and serum levels, occasionally causing deficiency and neuropathy or anemia. Cyanocobalamin supplementation is used to correct this rather than being harmed by it.

How serious is the interaction between Cyanocobalamin and Linagliptin-metformin?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Check vitamin B12 periodically in long-term metformin users, particularly with anemia or neuropathy, and supplement if deficient.

What other medicines interact with Linagliptin-metformin?

MediHelp also lists interactions of Linagliptin-metformin with, for example, Apalutamide, Carbamazepine, Contrast media. The full list is on the Linagliptin-metformin page.

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