What kind of interaction is it?

Timing-sensitive: the two substances can be taken on the same day but should be separated by a minimum time window.

Is this interaction backed by published research?

Yes. NutriStack lists 2 citation rows for the Cefpodoxime + Zinc pair, each linking to PubMed by PMID where available. Full sourcing methodology at https://nutristackapp.com/methodology/interactions.

Supplement × Prescription·timing-sensitive·Emerging evidence

Cefpodoxime + Zinc

Q: Can I take Cefpodoxime and Zinc together?

Yes, if you separate them in time. Cefpodoxime and Zinc have a documented timing-sensitive interaction. Oral zinc supplements may reduce cefpodoxime absorption through formation of poorly absorbed metal-drug complexes in the gut. As with other divalent cations, co-ingestion can lower the antibiotic's bioavailability and risk subtherapeutic levels.

Q: How does this affect a NutriStack Stack Score?

-5 to your Stack Score per scored timing-sensitive row.

Timing Sensitive Emerging evidence

Oral zinc supplements may reduce cefpodoxime absorption through formation of poorly absorbed metal-drug complexes in the gut. As with other divalent cations, co-ingestion can lower the antibiotic's bioavailability and risk subtherapeutic levels.

Supplement × Prescription

Open the interaction checker → Read the methodology

From the database

What the row says.

Every entry follows the same shape: what is happening, the mechanism, and the recommendation.

Substances

Cefpodoxime and Zinc

Pair type

Timing Sensitive

Evidence

Emerging

Source citations

Scope

Supplement × Prescription

Last verified

June 4, 2026

Timing SensitiveEmerging evidence

What is happening. Oral zinc supplements may reduce cefpodoxime absorption through formation of poorly absorbed metal-drug complexes in the gut. As with other divalent cations, co-ingestion can lower the antibiotic's bioavailability and risk subtherapeutic levels.

Mechanism. Divalent zinc cations can chelate beta-lactam antibiotics in the gastrointestinal lumen, forming insoluble complexes that reduce the absorbable drug fraction and lower systemic exposure.

Recommendation. Separate doses by at least 2 hours. Take cefpodoxime first, then zinc later. This is most relevant for higher-dose zinc supplements taken during a cold or for immune support while on the antibiotic.

Timing

Timing & separation.

Space the doses apart by at least this window to avoid the conflict.

Minimum separation

120

Stack Score

How it moves the number.

Effect on the composite score

If both Cefpodoxime and Zinc are in the same stack, this pair applies −5 to your Stack Score (per scored timing-sensitive row).

The full algorithm, the clamping rules, and four worked stacks are at /methodology/stack-score.

Sources

Sources, by evidence tier.

Every claim on this page is cited. PMIDs link straight to PubMed.

Reference material

1Neuvonen PJ. Interactions with the absorption of tetracyclines and other drugs by metal-containing preparations. Drugs. 1976.Needs sourceNo link
2Campbell NR, Hasinoff BB. Iron supplements: a common cause of drug interactions. Br J Clin Pharmacol. 1991.Needs sourceNo link

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Open the interaction checker → Browse the research index