NutriStack
Berberine HCl and Glyburide, a caution.
Berberine HCl has clinically measurable glucose-lowering activity. Glyburide is a sulfonylurea with a relatively high hypoglycemia risk, and the combination can lower glucose more than expected. Older adults and people with reduced kidney function are especially vulnerable.
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.
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At a glance
- Substances
- Berberine HCl and Glyburide
- Pair type
- Caution
- Evidence (highest tier)
- Moderate
- Source citations
- 2 sources
- Stack Score effect
- −5 to your Stack Score (per scored caution row).
- Scope
- Supplement × Prescription
- Last verified
- May 30, 2026
Caution · Moderate evidence
Caution
What is happening. Berberine HCl has clinically measurable glucose-lowering activity. Glyburide is a sulfonylurea with a relatively high hypoglycemia risk, and the combination can lower glucose more than expected. Older adults and people with reduced kidney function are especially vulnerable.
Mechanism. Berberine improves glucose metabolism through AMPK-related pathways, while glyburide increases insulin secretion by blocking beta-cell KATP channels. The combined pharmacodynamic effect can produce excessive glucose lowering.
Recommendation. Avoid adding Berberine HCl to glyburide unless your prescriber is supervising glucose monitoring. Check glucose more frequently when starting or stopping Berberine HCl, and have a plan for treating low blood sugar.
Stack Score
How this pair moves the number.
Effect on the composite score
If both Berberine HCl and Glyburide 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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