Pantoprazole and Zinc, a caution.
Long-term pantoprazole reduces zinc absorption and lowers body zinc stores, mirroring the class effect documented for other PPIs. In controlled studies, PPI users absorbed substantially less supplemental zinc and had baseline plasma zinc roughly 28% lower than controls. Reduced zinc can affect immune function, taste, and wound healing.
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
- Pantoprazole and Zinc
- 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. Long-term pantoprazole reduces zinc absorption and lowers body zinc stores, mirroring the class effect documented for other PPIs. In controlled studies, PPI users absorbed substantially less supplemental zinc and had baseline plasma zinc roughly 28% lower than controls. Reduced zinc can affect immune function, taste, and wound healing.
Mechanism. Zinc absorption depends in part on gastric acid for salt solubilization and on ZIP4 transporters that function best at acidic luminal pH. Pantoprazole's irreversible inhibition of the gastric proton pump blunts both.
Recommendation. If you take pantoprazole long-term, consider 15-30 mg/day of zinc, preferably as zinc picolinate or bisglycinate, which are less acid-dependent. Take with food if it causes nausea.
Sources (2)
- Farrell CP, Morgan M, Rudolph DS, et al. Proton Pump Inhibitors Interfere With Zinc Absorption and Zinc Body Stores. Gastroenterol Res. 2011;4(6):243-51. PMID 27957023
- Freedberg DE, Kim LS, Yang YX. The Risks and Benefits of Long-term Use of Proton Pump Inhibitors: Expert Review and Best Practice Advice From the American Gastroenterological Association. Gastroenterology. 2017;152(4):706-15. PMID 28257716
Stack Score
How this pair moves the number.
Effect on the composite score
If both Pantoprazole and Zinc 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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