Drug interactions
L-methylfolate + Metformin-pioglitazone
Severity: Minor
L-methylfolate and Metformin-pioglitazone: 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
Metformin may reduce vitamin B12 and possibly folate status over long-term use. L-methylfolate does not affect metformin efficacy, and no important clinical interaction is established.
What this interaction means in plain words
L-methylfolate and Metformin-pioglitazone have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
L-methylfolate belongs to Miscellaneous; Metformin-pioglitazone belongs to Endocrine.
Why it happens
Mechanism is not established; metformin may impair intestinal absorption of B vitamins.
What to do
No dose adjustment is needed; monitor vitamin B12 periodically in long-term metformin users.
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?
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Other interactions of Metformin-pioglitazone
Other interactions of L-methylfolate
Frequently asked questions
Can I take L-methylfolate with Metformin-pioglitazone?
MediHelp rates the interaction as minor. L-methylfolate and Metformin-pioglitazone have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Metformin may reduce vitamin B12 and possibly folate status over long-term use. L-methylfolate does not affect metformin efficacy, and no important clinical interaction is established.
How serious is the interaction between L-methylfolate and Metformin-pioglitazone?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No dose adjustment is needed; monitor vitamin B12 periodically in long-term metformin users.
What other medicines interact with Metformin-pioglitazone?
MediHelp also lists interactions of Metformin-pioglitazone with, for example, Contrast media, Diatrizoate meglumine / diatrizoate, Diatrizoate. The full list is on the Metformin-pioglitazone page.
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