Zinc 15+ Chelated Ingredients & Drug Interactions
by KAL
What is this page for?
First and foremost: checking Zinc 15+ Chelated against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.
Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy
Zinc 15+ Chelated is a dietary supplement by KAL with 3 active ingredients. Its ingredients are commonly taken for zinc deficiency, immune support, cold symptoms.Based on those ingredients, 103 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Zinc, Betaine Hydrochloride. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Zinc 15+ Chelated by KAL
Ask about any prescription or over-the-counter medication and we check it for interactions with Zinc 15+ Chelated by KAL — and tell you which ingredient is responsible.
AI summaries are generated from our interaction database for education only — always confirm with your pharmacist. How we use AI
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HelloPharmacist Scorecard of Zinc 15+ Chelated by KAL
Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.
What’s inside
Full disclosure
This product contains three active ingredients. Zinc is the primary one—it's a mineral your body needs for immune function, wound healing, and cell growth.
Betaine hydrochloride is added to boost stomach acid and may aid digestion, though the evidence for its effectiveness is limited. The product also includes a Trace Mineral Concentrate, which we can't detail further because we have no data on file for it.
The remaining ingredients are inactive fillers and binders like cellulose, rice flour, and magnesium stearate.
Does it work?
Moderate evidence
Zinc itself is effective for treating zinc deficiency and likely effective for Wilson disease (a copper metabolism disorder). It's possibly effective for acne, a skin condition tied to zinc deficiency, and for age-related macular degeneration (vision loss), diabetes, and acrodermatitis enteropathica (a rare skin condition).
Betaine hydrochloride, on the other hand, has insufficient evidence to rate—we don't have solid proof it works for dyspepsia, hypothyroidism, diarrhea, rheumatoid arthritis, food allergies, or hay fever. The effectiveness of Trace Mineral Concentrate isn't established in our data.
How safe is it?
Well-documented data
Zinc is generally well tolerated at recommended doses below 40 mg daily for adults. Common side effects include nausea, vomiting, diarrhea, abdominal cramps, and a metallic taste—these are dose-related and tend to fade.
Higher doses (above 40 mg daily) can raise the risk of copper deficiency over time, which may lead to anemia and low white blood cell counts. Betaine hydrochloride can irritate the stomach and is not safe if you have ulcers, gastritis, or true acid reflux; it may also cause heartburn.
There isn't enough safety data for betaine hydrochloride during pregnancy or breastfeeding, so it should be avoided in both.
Meds to double-check
Moderate interaction found
If you're on a quinolone antibiotic (like ciprofloxacin), tetracycline (like doxycycline), cephalexin, or penicillamine, space your zinc dose at least 2 hours before or 4–6 hours after. For HIV drugs like ritonavir, integrase inhibitors, or biktarvy, do the same—take them at least 2 hours before or 6 hours after zinc.
If you take acid-reducing drugs like H2-blockers, antacids, or proton pump inhibitors, be aware betaine hydrochloride may blunt their effect. Double-check all your medications before starting.
The bottom line
Scorecard at a glanceFully disclosed formula with some supporting evidence for its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.
This product is useful if you have a zinc deficiency or are at risk for one. If you take antibiotics, HIV medications, or acid-reducing drugs, check your exact medications with us before starting—spacing matters.
Steer clear if you have stomach ulcers or gastritis. Talk to your pharmacist, especially if you're pregnant, breastfeeding, or take any regular medications.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 2 of 3 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Feb 23, 2025.
This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed
General information
Key facts about Zinc 15+ Chelated, straight from the product label.
| Brand | KAL |
|---|---|
| Barcode (UPC) | 021245961239 |
| Net contents | 100 Tablet(s) |
| Market status | On market |
| Date entered into DSLD | Feb 23, 2025 |
| DSLD ID | 322960 |
| Product type | Other Combinations |
| Supplement form | Tablet Or Pill |
| Dietary claims / uses | Nutrient, All Other, Structure/Function |
| Intended target group(s) | Vegan, Vegetarian, Adult (18 - 50 Years), Gluten Free, Dairy Free |
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.
Supplement Facts
The label details for Zinc 15+ Chelated by KAL, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Zinc | 15 mg | 136% |
| Betaine Hydrochloride | 16 mg | -- |
| Trace Mineral Concentrate | 10 mg | -- |
Other ingredients: Cellulose, Rice Flour, Citric Acid, Alfalfa, Stearic Acid, Magnesium Stearate, Acacia Gum
Tap any ingredient to jump to its full detail below.
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
General Statements
1 Daily PCR Bottle
Brand IP Statement(s)
KAL Trust Quality Since 1932
Formulation
Immune System Support
Vegan
Gluten free
Discussion: KAL Zinc 15+ is chelated for maximum absorption. ActivTab technology guarantees tablet disintegration within 30 minutes according to USP standards.
Vegan Formula.
Seals/Symbols
Vegan
FDA Statement of Identity
Dietary Supplement
Precautions
Warning: Do not use if safety seal is broken or missing. Keep your licensed health care practitioner informed when using this product.
Keep out of reach of children.
Suggested/Recommended/Usage/Directions
Directions: Take 1 tablet daily with a meal or a glass of water. Use only as directed.
Storage
Store in a cool, dry place.
FDA Disclaimer Statement
These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure or prevent any disease.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Zinc 15+ Chelated by KAL label
The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.
Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.
View the full label (PDF)The Ingredients in Zinc 15+ Chelated by KAL
These are the 3 active ingredients this product is made of. Select any to open its full monograph.
Serving size1 Tablet(s) Dosage formTablet Or Pill Servings per container100 Amounts shown are per serving.
Most supplement products combine several ingredients, and a medication can interact with the product through any one of them. Each ingredient below shows whether it has known drug interactions.
Zinc
Interacts with67 drugs
Zinc is an essential mineral that your body needs for immune function, wound healing, taste, and smell. Most people get enough from food, but suppleme...
Zinc monograph & interactionsBetaine Hydrochloride
Interacts with36 drugs
Betaine hydrochloride is a supplement used to temporarily increase stomach acid in people who may have low acid levels. Evidence for its benefits is l...
Betaine Hydrochloride monograph & interactionsTrace Mineral Concentrate
Other (inactive) ingredients: Cellulose, Rice Flour, Citric Acid, Alfalfa, Stearic Acid, Magnesium Stearate, Acacia Gum. These complete the product’s ingredient list but are not active constituents.
Zinc 15+ Chelated by KAL Drug Interactions
HelloPharmacist Interaction Report
Zinc 15+ Chelated by KAL can interact with a number of medications.
Zinc's most serious interactions are Moderate in severity and affect antibiotics and antiretroviral drugs. Quinolone antibiotics (like ciprofloxacin), tetracycline antibiotics (like doxycycline), cephalexin, and penicillamine all form complexes with zinc in your gut that reduce how much of the antibiotic your body absorbs—sometimes by 30% or more.
You'll need to space these at least 2 hours before, or 4–6 hours after, your zinc dose.
Read the full breakdown — every affected drug type, severity by severity
Zinc also interacts with HIV medications including ritonavir and integrase inhibitors like dolutegravir, and with the combination drug bictarvy. These Moderate interactions work the same way: zinc chelates the drug and lowers its blood levels.
Cisplatin (a chemotherapy drug) may also be affected. Betaine hydrochloride, another active ingredient here, causes Minor interactions with acid-reducing drugs: it increases stomach acid, which can work against H2-blockers, antacids, and proton pump inhibitors (PPIs).
We couldn't check the third ingredient, Trace Mineral Concentrate—we hold no interaction data for it. Altogether, these interactions span 101 individual medications.
Before you start this supplement, run your exact medications through the checker on this page.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Zinc 15+ Chelated?
Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.
Go to the checkerIngredients driving the most interactions
Individual Drug Interactions
The ingredients in Zinc 15+ Chelated interact with 103 drugs. Click any drug to see the details.
2 of the 3 ingredients in Zinc 15+ Chelated interact with drugs. Each result below shows which ingredient is responsible. Zinc Betaine Hydrochloride
Amphotericin, TetracyclineMysteclin-F
How Amphotericin, Tetracycline interacts with Zinc 15+ Chelated — through 1 ingredient. Tap an ingredient for the detail:
ZincTetracycline Antibiotics Moderate
Interaction Summary
Zinc might reduce levels of tetracycline antibiotics.
Read the full Zinc + Amphotericin, Tetracycline interactionBictegravir, Emtricitabine, Tenofovir AlafenamideBiktarvy
How Bictegravir, Emtricitabine, Tenofovir Alafenamide interacts with Zinc 15+ Chelated — through 1 ingredient. Tap an ingredient for the detail:
ZincBictegravir/emtricitabine/tenofovir Alafenamide (biktarvy) Moderate
Interaction Summary
Theoretically, zinc might decrease levels of bictegravir/emtricitabine/tenofovir alafenamide by reducing its absorption.
Read the full Zinc + Bictegravir, Emtricitabine, Tenofovir Alafenamide interactionBismuth Subsalicylate, Metronidazole, TetracyclineHelidac
How Bismuth Subsalicylate, Metronidazole, Tetracycline interacts with Zinc 15+ Chelated — through 1 ingredient. Tap an ingredient for the detail:
ZincTetracycline Antibiotics Moderate
Interaction Summary
Zinc might reduce levels of tetracycline antibiotics.
Read the full Zinc + Bismuth Subsalicylate, Metronidazole, Tetracycline interactionCephalexinCephalex, Keflex, Keftab, Lexin
How Cephalexin interacts with Zinc 15+ Chelated — through 1 ingredient. Tap an ingredient for the detail:
ZincCephalexin (keflex) Moderate
Interaction Summary
Zinc might decrease cephalexin levels by chelating with cephalexin in the gut and preventing its absorption.
Read the full Zinc + Cephalexin interactionChlortetracyclineAureomycin
How Chlortetracycline interacts with Zinc 15+ Chelated — through 1 ingredient. Tap an ingredient for the detail:
ZincTetracycline Antibiotics Moderate
Interaction Summary
Zinc might reduce levels of tetracycline antibiotics.
Read the full Zinc + Chlortetracycline interactionCinoxacinCinobac
How Cinoxacin interacts with Zinc 15+ Chelated — through 1 ingredient. Tap an ingredient for the detail:
ZincQuinolone Antibiotics Moderate
Interaction Summary
Zinc can decrease the levels and clinical effects of quinolones antibiotics.
Read the full Zinc + Cinoxacin interactionCiprofloxacinCiloxan, Cipro, Cipro IV, Cipro XR, Ciprobay, Otiprio
How Ciprofloxacin interacts with Zinc 15+ Chelated — through 1 ingredient. Tap an ingredient for the detail:
ZincQuinolone Antibiotics Moderate
Interaction Summary
Zinc can decrease the levels and clinical effects of quinolones antibiotics.
Read the full Zinc + Ciprofloxacin interactionCisplatinPlatinol-AQ
How Cisplatin interacts with Zinc 15+ Chelated — through 1 ingredient. Tap an ingredient for the detail:
ZincCisplatin (platinol-aq) Moderate
Interaction Summary
Theoretically, zinc might interfere with the therapeutic effects of cisplatin.
Read the full Zinc + Cisplatin interactionClinafloxacinClinafloxacin
How Clinafloxacin interacts with Zinc 15+ Chelated — through 1 ingredient. Tap an ingredient for the detail:
ZincQuinolone Antibiotics Moderate
Interaction Summary
Zinc can decrease the levels and clinical effects of quinolones antibiotics.
Read the full Zinc + Clinafloxacin interactionCobicistat, Elvitegravir, Emtricitabine, Tenofovir Alafenamide FumarateGenvoya
How Cobicistat, Elvitegravir, Emtricitabine, Tenofovir Alafenamide Fumarate interacts with Zinc 15+ Chelated — through 1 ingredient. Tap an ingredient for the detail:
ZincBictegravir/emtricitabine/tenofovir Alafenamide (biktarvy) Moderate
Interaction Summary
Theoretically, zinc might decrease levels of bictegravir/emtricitabine/tenofovir alafenamide by reducing its absorption.
Read the full Zinc + Cobicistat, Elvitegravir, Emtricitabine, Tenofovir Alafenamide Fumarate interactionDarunavir, Cobicistat, Emtricitabine, Tenofovir AlafenamideSymtuza
How Darunavir, Cobicistat, Emtricitabine, Tenofovir Alafenamide interacts with Zinc 15+ Chelated — through 1 ingredient. Tap an ingredient for the detail:
ZincBictegravir/emtricitabine/tenofovir Alafenamide (biktarvy) Moderate
Interaction Summary
Theoretically, zinc might decrease levels of bictegravir/emtricitabine/tenofovir alafenamide by reducing its absorption.
Read the full Zinc + Darunavir, Cobicistat, Emtricitabine, Tenofovir Alafenamide interactionDarunavir, RitonavirDarunavir, Ritonavir
How Darunavir, Ritonavir interacts with Zinc 15+ Chelated — through 1 ingredient. Tap an ingredient for the detail:
ZincRitonavir (norvir) Moderate
Interaction Summary
Zinc modestly reduces levels of ritonavir.
Read the full Zinc + Darunavir, Ritonavir interactionDasabuvir Sodium, Ombitasvir, Paritaprevir, RitonavirViekira XR
How Dasabuvir Sodium, Ombitasvir, Paritaprevir, Ritonavir interacts with Zinc 15+ Chelated — through 1 ingredient. Tap an ingredient for the detail:
ZincRitonavir (norvir) Moderate
Interaction Summary
Zinc modestly reduces levels of ritonavir.
Read the full Zinc + Dasabuvir Sodium, Ombitasvir, Paritaprevir, Ritonavir interactionDemeclocyclineDeclomycin
How Demeclocycline interacts with Zinc 15+ Chelated — through 1 ingredient. Tap an ingredient for the detail:
ZincTetracycline Antibiotics Moderate
Interaction Summary
Zinc might reduce levels of tetracycline antibiotics.
Read the full Zinc + Demeclocycline interactionDolutegravir, Emtricitabine, Tenofovir AlafenamideDolutegravir, Emtricitabine, Tenofovir Alafenamide
How Dolutegravir, Emtricitabine, Tenofovir Alafenamide interacts with Zinc 15+ Chelated — through 1 ingredient. Tap an ingredient for the detail:
ZincBictegravir/emtricitabine/tenofovir Alafenamide (biktarvy) Moderate
Interaction Summary
Theoretically, zinc might decrease levels of bictegravir/emtricitabine/tenofovir alafenamide by reducing its absorption.
Read the full Zinc + Dolutegravir, Emtricitabine, Tenofovir Alafenamide interactionDoripenemDoribax
How Doripenem interacts with Zinc 15+ Chelated — through 1 ingredient. Tap an ingredient for the detail:
ZincQuinolone Antibiotics, Tetracycline Antibiotics Moderate
Interaction Summary
Zinc can decrease the levels and clinical effects of quinolones antibiotics.
Read the full Zinc + Doripenem interactionDoxycyclineDoryx, Doxy, Doxy-D, Doxycin, Doxycycline Injection, Doxylin +6 more
How Doxycycline interacts with Zinc 15+ Chelated — through 1 ingredient. Tap an ingredient for the detail:
ZincTetracycline Antibiotics Moderate
Interaction Summary
Zinc might reduce levels of tetracycline antibiotics.
Read the full Zinc + Doxycycline interactionDoxycycline HyclateActiclate, Acticlate Cap, Lymepak
How Doxycycline Hyclate interacts with Zinc 15+ Chelated — through 1 ingredient. Tap an ingredient for the detail:
ZincTetracycline Antibiotics Moderate
Interaction Summary
Zinc might reduce levels of tetracycline antibiotics.
Read the full Zinc + Doxycycline Hyclate interactionDoxycycline MonohydrateErfacea
How Doxycycline Monohydrate interacts with Zinc 15+ Chelated — through 1 ingredient. Tap an ingredient for the detail:
ZincTetracycline Antibiotics Moderate
Interaction Summary
Zinc might reduce levels of tetracycline antibiotics.
Read the full Zinc + Doxycycline Monohydrate interactionDoxycylineDoxychel
How Doxycyline interacts with Zinc 15+ Chelated — through 1 ingredient. Tap an ingredient for the detail:
ZincTetracycline Antibiotics Moderate
Interaction Summary
Zinc might reduce levels of tetracycline antibiotics.
Read the full Zinc + Doxycyline interactionElvitegravir, Cobicistat, Emtricitabine, Tenofovir Disoproxil FumarateStribild
How Elvitegravir, Cobicistat, Emtricitabine, Tenofovir Disoproxil Fumarate interacts with Zinc 15+ Chelated — through 1 ingredient. Tap an ingredient for the detail:
ZincBictegravir/emtricitabine/tenofovir Alafenamide (biktarvy) Moderate
Interaction Summary
Theoretically, zinc might decrease levels of bictegravir/emtricitabine/tenofovir alafenamide by reducing its absorption.
Read the full Zinc + Elvitegravir, Cobicistat, Emtricitabine, Tenofovir Disoproxil Fumarate interactionEmtricitabineEmtriva
How Emtricitabine interacts with Zinc 15+ Chelated — through 1 ingredient. Tap an ingredient for the detail:
ZincBictegravir/emtricitabine/tenofovir Alafenamide (biktarvy) Moderate
Interaction Summary
Theoretically, zinc might decrease levels of bictegravir/emtricitabine/tenofovir alafenamide by reducing its absorption.
Read the full Zinc + Emtricitabine interactionEmtricitabine, Rilpivirine, TenofovirComplera
How Emtricitabine, Rilpivirine, Tenofovir interacts with Zinc 15+ Chelated — through 1 ingredient. Tap an ingredient for the detail:
ZincBictegravir/emtricitabine/tenofovir Alafenamide (biktarvy) Moderate
Interaction Summary
Theoretically, zinc might decrease levels of bictegravir/emtricitabine/tenofovir alafenamide by reducing its absorption.
Read the full Zinc + Emtricitabine, Rilpivirine, Tenofovir interactionEmtricitabine, Rilpivirine, Tenofovir AlafenamideOdefsey
How Emtricitabine, Rilpivirine, Tenofovir Alafenamide interacts with Zinc 15+ Chelated — through 1 ingredient. Tap an ingredient for the detail:
ZincBictegravir/emtricitabine/tenofovir Alafenamide (biktarvy) Moderate
Interaction Summary
Theoretically, zinc might decrease levels of bictegravir/emtricitabine/tenofovir alafenamide by reducing its absorption.
Read the full Zinc + Emtricitabine, Rilpivirine, Tenofovir Alafenamide interactionEmtricitabine, Tenofovir Alafenamide FumarateDescovy
How Emtricitabine, Tenofovir Alafenamide Fumarate interacts with Zinc 15+ Chelated — through 1 ingredient. Tap an ingredient for the detail:
ZincBictegravir/emtricitabine/tenofovir Alafenamide (biktarvy) Moderate
Interaction Summary
Theoretically, zinc might decrease levels of bictegravir/emtricitabine/tenofovir alafenamide by reducing its absorption.
Read the full Zinc + Emtricitabine, Tenofovir Alafenamide Fumarate interactionEnoxacinPenetrex
How Enoxacin interacts with Zinc 15+ Chelated — through 1 ingredient. Tap an ingredient for the detail:
ZincQuinolone Antibiotics Moderate
Interaction Summary
Zinc can decrease the levels and clinical effects of quinolones antibiotics.
Read the full Zinc + Enoxacin interactionEravacyclineXerava
How Eravacycline interacts with Zinc 15+ Chelated — through 1 ingredient. Tap an ingredient for the detail:
ZincTetracycline Antibiotics Moderate
Interaction Summary
Zinc might reduce levels of tetracycline antibiotics.
Read the full Zinc + Eravacycline interactionFinafloxacinXtoro
How Finafloxacin interacts with Zinc 15+ Chelated — through 1 ingredient. Tap an ingredient for the detail:
ZincQuinolone Antibiotics Moderate
Interaction Summary
Zinc can decrease the levels and clinical effects of quinolones antibiotics.
Read the full Zinc + Finafloxacin interactionGatifloxacinTequin, Tequin Injection
How Gatifloxacin interacts with Zinc 15+ Chelated — through 1 ingredient. Tap an ingredient for the detail:
ZincQuinolone Antibiotics Moderate
Interaction Summary
Zinc can decrease the levels and clinical effects of quinolones antibiotics.
Read the full Zinc + Gatifloxacin interactionGemifloxacinFactive
How Gemifloxacin interacts with Zinc 15+ Chelated — through 1 ingredient. Tap an ingredient for the detail:
ZincQuinolone Antibiotics Moderate
Interaction Summary
Zinc can decrease the levels and clinical effects of quinolones antibiotics.
Read the full Zinc + Gemifloxacin interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Zinc 15+ Chelated with known interactions, here are the types of medications they can affect. Open any type for the detail — or search your exact drug in the checker above.
Zinc
Bictegravir/Emtricitabine/Tenofovir Alafenamide (Biktarvy)
Theoretically, zinc might decrease levels of bictegravir/emtricitabine/tenofovir alafenamide by reducing its absorption.
Advise patients that bictegravir/emtricitabine/tenofovir alafenamide should be taken at least 2 hours before or 6 hours after zinc containing products.
Cephalexin (Keflex)
Zinc might decrease cephalexin levels by chelating with cephalexin in the gut and preventing its absorption.
A pharmacokinetic study shows that zinc sulfate 250 mg taken concomitantly with cephalexin 500 mg decreases peak levels of cephalexin by 31% and reduces the exposure to cephalexin by 27%. Also, taking zinc sulfate 3 hours before cephalexin decreases peak levels of cephalexin by 11% and reduces the exposure to cephalexin by 18%. By decreasing cephalexin levels, zinc might increase the risk of treatment failure. This effect does not occur when zinc is taken 3 hours after the cephalexin dose. To avoid an interaction, advise patients take zinc sulfate 3 hours after taking cephalexin.
Cisplatin (Platinol-Aq)
Theoretically, zinc might interfere with the therapeutic effects of cisplatin.
Animal research suggests that zinc stimulates tumor cell production of the protein metallothionein, which binds and inactivates cisplatin. It is not known whether zinc supplements or high dietary zinc intake can cause clinically significant interference with cisplatin therapy. Cisplatin might also increase zinc excretion.
Integrase Inhibitors
Theoretically, taking zinc along with integrase inhibitors might decrease the levels and clinical effects of these drugs.
Zinc is a divalent cation. Pharmacokinetic studies have shown that other divalent cations such as calcium and iron can decrease blood levels of the integrase inhibitor dolutegravir through chelation.
Penicillamine (Cuprimine, Depen)
Zinc might reduce the levels and clinical effects of penicillamine.
By forming an insoluble complex with penicillamine, zinc interferes with penicillamine absorption and activity. Zinc supplements reduce the efficacy of low-dose penicillamine (0.5-1 gram/day), but do not seem to affect higher doses (1-2.75 gram/day), provided dosing times are separated. Advise patients to take zinc and penicillamine at least 2 hours apart.
Quinolone Antibiotics
Zinc can decrease the levels and clinical effects of quinolones antibiotics.
Quinolones form complexes with zinc in the gastrointestinal tract, reducing absorption of both the quinolone and zinc if taken at the same time. Advise patients to take these drugs at least 2 hours before, or 4-6 hours after, zinc supplements.
Ritonavir (Norvir)
Zinc modestly reduces levels of ritonavir.
Clinical research shows that zinc might reduce serum ritonavir levels by chelating with ritonavir in the gut and preventing its absorption. In patients with HIV, ritonavir is taken with atazanavir to prevent the metabolism and increase the effects of atazanavir. A pharmacokinetic study shows that, in patients being treated with atazanavir/ritonavir, co-administration of zinc sulfate (Solvazinc tablets) 125 mg as a single dose or as multiple daily doses for 2 weeks reduces plasma levels of ritonavir by about 16%. However, atazanavir levels still remains high enough to prevent HIV virus replication. Therefore, the decrease in ritonavir levels is not likely to be clinically significant.
Tetracycline Antibiotics
Zinc might reduce levels of tetracycline antibiotics.
Tetracyclines form complexes with zinc in the gastrointestinal tract, which can reduce absorption of both the tetracycline and zinc when taken at the same time. Taking zinc sulfate 200 mg with tetracycline reduces absorption of the antibiotic by 30% to 40%. Demeclocycline and minocycline cause a similar interaction. However, doxycycline does not seem to interact significantly with zinc. Advise patients to take tetracyclines at least 2 hours before, or 4-6 hours after, zinc supplements to avoid any interactions.
Amiloride (Midamor)
Amiloride can modestly reduce zinc excretion and increase zinc levels.
Clinical research shows that amiloride can reduce urinary zinc excretion, especially at doses of 10 mg per day or more. This zinc-sparing effect can help to counteract zinc losses caused by thiazide diuretics, but it is unlikely to cause zinc toxicity at usual amiloride doses. The other potassium-sparing diuretics, spironolactone (Aldactone) and triamterene (Dyrenium), do not seem to have a zinc-sparing effect.
Atazanavir (Reyataz)
Zinc modestly reduces levels of atazanavir, although this effect does not seem to be clinically significant.
Clinical research shows that zinc might decrease serum atazanavir levels by chelating with atazanavir in the gut and preventing its absorption. Although a single dose of zinc sulfate (Solvazinc tablets) 125 mg orally does not affect atazanavir concentrations in patients being treated with atazanavir/ritonavir, co-administration of zinc sulfate 125 mg daily for 2 weeks reduces plasma levels of atazanavir by about 22% in these patients. However, despite this decrease, atazanavir levels still remain at high enough concentrations for the prevention of HIV virus replication.
Betaine Hydrochloride
Antacids
Betaine hydrochloride increases stomach acidity and could decrease the effects of antacids.
In human research, betaine hydrochloride increases stomach acidity. Antacids are taken to decrease stomach acidity. Theoretically, taking betaine hydrochloride along with antacids might decrease the effects of the antacids.
H2-Blockers
Betaine hydrochloride increases stomach acidity and could decrease the effects of H2-blockers.
In human research, betaine hydrochloride increases stomach acidity. H2-blockers are used to decrease stomach acidity. Theoretically, taking betaine hydrochloride along with H2-blockers might decrease the effects of H2-blockers.
Proton Pump Inhibitors (Ppis)
Betaine hydrochloride increases stomach acidity and could decrease the effects of PPIs.
In human research, betaine hydrochloride increases stomach acidity. PPIs are used to decrease stomach acidity. Theoretically, taking betaine hydrochloride along with PPIs might decrease the effects of PPIs
Brand information
Manufacturer and brand details for Zinc 15+ Chelated, from the product label.
Zinc 15+ Chelated by KAL: Common Questions
Does Zinc 15+ Chelated by KAL interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Is this safe to take if I'm pregnant or breastfeeding?
What are the side effects I might notice?
How much zinc is actually in here, and is it safe to take daily?
What does this supplement actually do?
Can I take this at the same time as my antibiotics?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Zinc 15+ Chelated is safe with your meds?
Our pharmacists answer your medication & supplement questions — free.
Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.
The Full Monographs Behind Zinc 15+ Chelated’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Zinc
Interacts with 67 drugsZinc is an essential mineral that your body needs for immune function, wound healing, taste, and smell. Most people get enough from food, but supplements can help correct or prevent a defici...
Read the full Zinc monograph → Herb & supplement monographBetaine Hydrochloride
Interacts with 36 drugsBetaine hydrochloride is a supplement used to temporarily increase stomach acid in people who may have low acid levels. Evidence for its benefits is limited and mostly based on tradition rat...
Read the full Betaine Hydrochloride monograph →Sources & How We Checked
Zinc 15+ Chelated's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.
- NIH Dietary Supplement Label Database (DSLD) — The official product label on file for this supplement.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference behind the ingredient interaction data.
Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.
The 90 references behind this product’s interaction data
Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.
Zinc 88 references
- Barceloux DG. Zinc. J Toxicol Clin Toxicol 1999;37:279-92.
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- GlaxoSmithKline Consumer Advisory. GlaxoSmithKline (GSK) warns about a potential health risk associated with long-term, excessive use of GSK's zinc-containing denture adhesives Super Polygrip Original, Ultra Fresh and Extra Care. February 18, 2010. Availa
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- Varas Lorenzo, M. J. Zinc acexamate and ranitidine in the short- and mid-term management of gastroduodenal ulcers. Curr Ther Res 21986;39:19-29.
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- Magham K, Han J, Eilbert W, Bunney EB. Severe copper deficiency anemia caused by zinc supplement use. Am J Emerg Med 2023;72:222. PubMed
- Sivakumar RR, Chinnaiah Govindareddy D, Sahoo J, Bobby Z, Chinnakali P. Effect of daily zinc supplementation for 12 weeks on serum thyroid auto-antibody levels in children and adolescents with autoimmune thyroiditis - a randomized controlled trial. J Pedi PubMed
- AlDhasee O, AlMalki H, AlKharashi N, AlJeraisy N, Al Deeb M. Acute zinc sulfate overdose: clinical presentation and management. BMJ Case Rep 2025;18(1):e263899. PubMed
- US Food and Drug Administration (FDA). Biktarvy Prescribing Information. October 2024. Available at: https://www.accessdata.fda.gov/drugsatfda_docs/label/2024/210251Orig1s020lbl.pdf. Accessed July 16, 2025.
Betaine Hydrochloride 2 references
- Yago MR, Frymoyer A, Benet LZ, Smelick GS, Frassetto LA, Ding X, Dean B, Salphati L, Budha N, Jin JY, Dresser MJ, Ware JA. The use of betaine HCl to enhance dasatinib absorption in healthy volunteers with rabeprazole-induced hypochlorhydria. AAPS J. 2014 PubMed
- Yago MR, Frymoyer AR, Smelick GS, Frassetto LA, Budha NR, Dresser MJ, Ware JA, Benet LZ. Gastric reacidification with betaine HCl in healthy volunteers with rabeprazole-induced hypochlorhydria. Mol Pharm. 2013 Nov 4;10(11):4032-7. PubMed
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DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.
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