Drug interactions
Insulin glargine + Marijuana
Severity: Minor
Insulin glargine and Marijuana: 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 use may influence glucose levels and appetite and could modestly reduce the effect of insulin. The evidence is inconsistent and the clinical importance is uncertain.
What this interaction means in plain words
Insulin glargine and Marijuana 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
The mechanism is not established; cannabinoid effects on appetite and metabolism may alter glucose levels.
What to do
Advise patients to monitor blood glucose more often if they use cannabis regularly and adjust insulin on the basis of readings.
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 Insulin glargine
Frequently asked questions
Can I take Insulin glargine with Marijuana?
MediHelp rates the interaction as minor. Insulin glargine and Marijuana 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 use may influence glucose levels and appetite and could modestly reduce the effect of insulin. The evidence is inconsistent and the clinical importance is uncertain.
How serious is the interaction between Insulin glargine and Marijuana?
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 monitor blood glucose more often if they use cannabis regularly and adjust insulin on the basis of readings.
What other medicines interact with Insulin glargine?
MediHelp also lists interactions of Insulin glargine with, for example, Alogliptin-pioglitazone, Ethanol, Glimepiride-pioglitazone. The full list is on the Insulin glargine page.
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