Insulin Glulisine and Lithium Interaction
Drug interaction information between Insulin Glulisine and Lithium.
Insulin Glulisine and Lithium have a documented minor interaction in FDA labeling.
FDA drug labeling documents a minor-severity interaction between Insulin Glulisine and Lithium. Major interactions are generally avoided, moderate ones may need monitoring or a dose adjustment, and minor ones are usually low-risk. This page shows the documented mechanism and guidance. Label-documented interactions are not a complete safety review, so always confirm your own medications with a pharmacist or doctor. Educational information, not medical advice.
How They Interact
Lithium can make blood sugar levels unpredictable by either helping or blocking the way insulin works in the body.
What To Do
Monitor your blood sugar levels closely and report any big changes to your doctor.
FDA Label Information
Drugs that May Increase or Decrease the Blood Glucose Lowering Effect of APIDRA Drugs: Alcohol, beta-blockers, clonidine, and lithium salts.
Insulin Glulisine Also Interacts With
- Fluoxetine moderate
- Pramlintide moderate
- Octreotide moderate
- Albuterol minor
- Clonidine minor
Lithium Also Interacts With
- Amlodipine/Benazepril major
- Risperidone major
- Amiloride moderate
- Amiodarone moderate
- Amlodipine/Valsartan moderate
Frequently Asked Questions
Can I take Insulin Glulisine and Lithium together?
This is a minor interaction. Monitor your blood sugar levels closely and report any big changes to your doctor.
How serious is the interaction between Insulin Glulisine and Lithium?
This interaction is classified as "minor" severity by the FDA. Minor interactions are unlikely to cause significant problems but should still be mentioned to your healthcare provider.
Why do Insulin Glulisine and Lithium interact?
Lithium can make blood sugar levels unpredictable by either helping or blocking the way insulin works in the body.
Understanding the Insulin Glulisine and Lithium Interaction
FDA-approved prescribing information for these two drugs flags their combination as a minor-severity interaction. Insulin Glulisine belongs to the Rapid-Acting Insulin class and Lithium belongs to the Mood Stabilizer class - two categories that can collide when co-prescribed. The mechanism described in FDA labeling is: Lithium can make blood sugar levels unpredictable by either helping or blocking the way insulin works in the body. Severity tiers matter: major flags generally advise avoidance, moderate flags often require monitoring or dose adjustment, and minor flags may only call for awareness.
Context around a specific patient determines real-world impact. Insulin Glulisine has 9 total documented interactions on file in this dataset, and Lithium has 90. Each additional medication compounds the interaction surface, which is why pharmacists run full-profile checks rather than evaluating one pair at a time. FDA-derived guidance for this pair is: Monitor your blood sugar levels closely and report any big changes to your doctor. Timing of doses, renal and hepatic function, age, and other concurrent prescriptions all shape whether a labeled interaction matters clinically.
An interaction flag is not a verdict. A large share of labeled interactions are managed routinely in clinical practice, the fix may be as simple as spacing doses or adding a monitoring test. Others require the prescriber to choose a different medication entirely. This page surfaces FDA-sourced labeling and openFDA data for educational purposes only; it is not medical advice and cannot account for your full clinical picture. Never start, stop, or adjust either Insulin Glulisine or Lithium based on a web page, speak with your prescriber or pharmacist before making any change.
Sources: FDA Drug Labels (SPL) via openFDA (2026). This is for informational purposes only and is not medical advice. Always consult your healthcare provider about drug interactions.
Read our methodology - how this data is sourced, computed, and verified.