NutriStack
Berberine HCl and Glipizide, a caution.
Berberine HCl lowers blood glucose independently of sulfonylurea therapy. Glipizide can cause hypoglycemia by increasing insulin release, so adding Berberine HCl can push glucose too low. Risk is higher with missed meals, low-carbohydrate dieting, older age, kidney disease, or recent weight loss.
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 Glipizide
- 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 lowers blood glucose independently of sulfonylurea therapy. Glipizide can cause hypoglycemia by increasing insulin release, so adding Berberine HCl can push glucose too low. Risk is higher with missed meals, low-carbohydrate dieting, older age, kidney disease, or recent weight loss.
Mechanism. Berberine improves glucose disposal and insulin sensitivity through AMPK-linked pathways. Glipizide closes pancreatic beta-cell KATP channels and increases insulin release, creating additive pharmacodynamic glucose lowering.
Recommendation. Do not add Berberine HCl to glipizide without a glucose-monitoring plan. Check glucose more often for the first 1-2 weeks and ask your prescriber whether glipizide dose reduction is appropriate if readings fall.
Stack Score
How this pair moves the number.
Effect on the composite score
If both Berberine HCl and Glipizide 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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