Drug interactions
Marijuana + Metformin-repaglinide
Severity: Minor
Marijuana and Metformin-repaglinide: 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
Cannabis can change appetite and glucose handling, and cannabinoids inhibit CYP enzymes in vitro, so effects on glycemic control and repaglinide levels are possible but unpredictable. Clinical evidence in patients is limited.
What this interaction means in plain words
Marijuana and Metformin-repaglinide have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Cannabinoids may inhibit CYP3A4 and CYP2C8 and have variable effects on glucose metabolism; the clinical mechanism is not well established.
What to do
Advise patients to report cannabis use and monitor blood glucose for unexpected hypoglycemia or hyperglycemia. Adjust therapy only if glycemic changes occur.
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-repaglinide
Frequently asked questions
Can I take Marijuana with Metformin-repaglinide?
MediHelp rates the interaction as minor. Marijuana and Metformin-repaglinide have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Cannabis can change appetite and glucose handling, and cannabinoids inhibit CYP enzymes in vitro, so effects on glycemic control and repaglinide levels are possible but unpredictable. Clinical evidence in patients is limited.
How serious is the interaction between Marijuana and Metformin-repaglinide?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Advise patients to report cannabis use and monitor blood glucose for unexpected hypoglycemia or hyperglycemia. Adjust therapy only if glycemic changes occur.
What other medicines interact with Metformin-repaglinide?
MediHelp also lists interactions of Metformin-repaglinide with, for example, Gemfibrozil, Apalutamide, Clarithromycin. The full list is on the Metformin-repaglinide page.
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