Glimepiride and Vanadium, a caution.
Vanadium salts have insulin-mimetic effects and have improved insulin sensitivity in small human diabetes studies. Glimepiride is a sulfonylurea with recognized hypoglycemia risk, so adding vanadium may produce excessive glucose lowering, especially with missed meals, renal impairment, older age, or other diabetes drugs.
One pair, every claim cited. The two substances, the type, the mechanism, the recommendation, and the primary literature.
Same shape as the other 1,729 pairs in the public database.
From the interaction database
What the row says.
Every entry follows the same shape: what is happening, the mechanism, the recommendation, and the primary literature.
At a glance
- Substances
- Glimepiride and Vanadium
- Pair type
- Caution
- Evidence (highest tier)
- Emerging
- Source citations
- 3 sources
- Stack Score effect
- −5 to your Stack Score (per scored caution row).
- Scope
- Supplement × Prescription
- Last verified
- May 30, 2026
Caution · Emerging evidence
Caution
What is happening. Vanadium salts have insulin-mimetic effects and have improved insulin sensitivity in small human diabetes studies. Glimepiride is a sulfonylurea with recognized hypoglycemia risk, so adding vanadium may produce excessive glucose lowering, especially with missed meals, renal impairment, older age, or other diabetes drugs.
Mechanism. Vanadium can mimic insulin signaling and improve insulin sensitivity. Glimepiride increases insulin secretion from pancreatic beta cells, so the combination may additively lower glucose.
Recommendation. Do not add vanadium to glimepiride without prescriber review. If a clinician approves the combination, check glucose more frequently during initiation and dose changes, and have a plan for low blood sugar. Seek urgent care for severe confusion, fainting, seizure, or persistent hypoglycemia.
Sources (3)
- Cusi K, Cukier S, DeFronzo RA, Torres M, Puchulu FM, Redondo JC. Vanadyl sulfate improves hepatic and muscle insulin sensitivity in type 2 diabetes. J Clin Endocrinol Metab. 2001;86(3):1410-1417. PMID 11238540
- Goldfine AB, Patti ME, Zuberi L, et al. Metabolic effects of vanadyl sulfate in humans with non-insulin-dependent diabetes mellitus: in vivo and in vitro studies. Metabolism. 2000;49(3):400-410. PMID 10726921
- Douros A, Yin H, Yu OHY, Filion KB, Azoulay L, Suissa S. Pharmacologic Differences of Sulfonylureas and the Risk of Adverse Cardiovascular and Hypoglycemic Events. Diabetes Care. 2017;40(11):1506-1513. PMID 28864502
Stack Score
How this pair moves the number.
Effect on the composite score
If both Glimepiride and Vanadium are in the same stack, this pair applies −5 to your Stack Score (per scored caution row).
The full algorithm, the clamping rules, and four worked stacks are documented at /methodology/stack-score.
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