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Dietary supplement

Manganese 15 mg Ingredients & Drug Interactions

by Douglas Cooper Co.

Manganese 15 mg label
See full label image
Tablet Or Pill Category: Mineral
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Manganese 15 mg 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

The interaction bottom line Most serious interaction: Moderate

Manganese 15 mg is a dietary supplement by Douglas Cooper Co. with 1 active ingredient. Its ingredients are commonly taken for bone health support, antioxidant and enzyme support, filling dietary gaps.Based on those ingredients, 83 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Manganese. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Manganese 15 mg by Douglas Cooper Co.

Ask about any prescription or over-the-counter medication and we check it for interactions with Manganese 15 mg by Douglas Cooper Co. — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Manganese 15 mg by Douglas Cooper Co.

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.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Aug 20, 2026

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 1 of its 1 active ingredient.
  • No proprietary blends here — you can verify the dose of every single component.

This is a straightforward single-ingredient supplement: manganese at 15 mg per tablet. The inactive ingredients are sorbitol, stearic acid, modified cellulose gum, colloidal silicon dioxide, and magnesium stearate — these are fillers and binders that hold the tablet together.

Does it work?

Strong evidence
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed

This product doesn't appear to be marketed for a specific use, so we graded Manganese's overall clinical evidence instead.

Strong

Strong clinical evidence supports Manganese for:

Why this rating?
  • We looked at the product name, claims, and label statements and couldn't find a stated purpose to grade.
  • Since the label doesn't commit to one use, we graded the ingredient's overall clinical evidence instead.
  • On file: Manganese deficiency — rated "Effective" (Natural Medicines).

Manganese is effective for treating manganese deficiency. For other uses — hay fever, osteoporosis, COPD, weight loss, and osteoarthritis — the evidence isn't established in the data we hold.

If you're considering this supplement for one of those conditions, talk it over with your doctor or pharmacist about what the research actually supports.

The evidence, ingredient by ingredient Manganese

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 1 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Manganese at normal dietary levels and in prenatal vitamins is safe. The concern here is high-dose supplements — ones much larger than this 15 mg dose used long-term.

High doses carry a rare but serious risk: neurotoxicity, including symptoms like Parkinson disease (tremors, rigidity, stiffness). One documented case involved someone taking 100 mg daily for 2 to 4 years and developing irreversible Parkinson disease.

Very high manganese exposure has also been linked to liver damage (cirrhosis and fatty liver), though that's uncommon. For pregnancy and breastfeeding, the safety data on file is conflicting — one entry says lactation is likely safe, while others say possibly unsafe or likely unsafe.

Because the guidance isn't clear, talk with your doctor or pharmacist about whether this supplement is right for you if you're pregnant or nursing.

Side effects, ingredient by ingredient Manganese

Meds to double-check

Moderate interaction found
Known Interaction Concern · database check
Moderate identified

The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.

Why this rating?
  • 1 of the 1 matched ingredient can interact with medications — Manganese.
  • The most serious interaction on file is rated Moderate.
  • For scale: 83 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

Before you take this product, double-check with your doctor or pharmacist if you're on any antipsychotic drugs — the safety concern is more serious with those. You should also avoid taking this manganese supplement at the same time as quinolone antibiotics (like ciprofloxacin or levofloxacin) or tetracycline antibiotics (like doxycycline); manganese will reduce how much of those drugs your body absorbs and they won't work as well.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with strong clinical evidence behind its ingredients' uses. Moderate medication interactions have been identified, and safety information is well characterized.

This supplement is useful if you actually have a manganese deficiency — your doctor can check that with a blood test. If you take an antipsychotic medication or an antibiotic, you'll need to clear it with your own doctor or pharmacist first, because manganese may interfere with how well those drugs work or raise your risk of side effects.

At the 15 mg dose in this product, serious side effects are rare, but high-dose manganese over time does carry neurotoxicity risks.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated May 22, 2021.

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

At a glance

General information

Key facts about Manganese 15 mg, straight from the product label.

Brand Douglas Cooper Co.
Net contents 100 Tablet(s)
Market status On market
Date entered into DSLD May 22, 2021
DSLD ID 247368
Product type Mineral
Supplement form Tablet Or Pill
Dietary claims / uses Nutrient, All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Sugar Free
From the label
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 Manganese 15 mg by Douglas Cooper Co., sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
1 Tablet(s)
Maximum serving Sizes:
1 Tablet(s)
Servings per container
100
IngredientAmount% DV
Manganese15 mg750%

Other ingredients: Sorbitol, Stearic Acid, modified Cellulose Gum, Silicon Dioxide, Colloidal, Magnesium Stearate

Tap any ingredient to jump to its full detail below.

Label statements
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.
Suggested/Recommended/Usage/Directions

Suggested Use As a dietary supplement, one tablet daily, or as recommended by your health care professional.

Precautions

Note: If you are pregnant or breastfeeding consult your health care professional before using this product.

Keep out of reach of children.

Contains: Wheat/gluten

Formulation

Combining experience with a commitment to excellence, the unsurpassed quality of this and all Cooper products is assured by rigid quality controls and conformance to highest standard of purity.

Contains no sugar, salt, preservatives or artificial color, flavor or fragrance.

The Manganese is chelated (bonded) with amino acids to enhance absorption. Manganese activates many enzymes and vitamins, including Vitamin C. Manganese works as an antioxidant to protect cell membranes and is needed for healthy bone formation, metabolism and energy cycles, and for cellular production of collagen, urea and insulin.

Storage

Store in a dry place at room temperature (59 degrees - 86 degrees F/15 degrees - 30 degrees C)

General Statements

Douglas Cooper Co. "Trace Minerals Make the Difference" Since 1950

Formula

Amino acid chelate

FDA Statement of Identity

Dietary Supplement

FDA Disclaimer Statement

These statements have not been evaluated by the Food and Drug Administration. 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.

See for yourself

Manganese 15 mg by Douglas Cooper Co. label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

Manganese 15 mg label

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)
What’s inside

The Ingredients in Manganese 15 mg by Douglas Cooper Co.

This is the 1 active ingredient this product is made of. Select it to open its full monograph.

Serving size1 Tablet(s) Dosage formTablet Or Pill Servings per container100 Amounts shown are per serving.

Manganese

Interacts with
83 drugs
15 mg per serving Form: Manganese Amino Acid Chelate

Manganese is an essential trace mineral your body needs in small amounts for bone formation, metabolism, and antioxidant defense, and most people get...

Manganese monograph & interactions

Other (inactive) ingredients: Sorbitol, Stearic Acid, Modified Cellulose Gum, Silicon Dioxide, Colloidal, Magnesium Stearate. These complete the product’s ingredient list but are not active constituents.

Interaction report

Manganese 15 mg by Douglas Cooper Co. Drug Interactions

Want to check YOUR meds against Manganese 15 mg?

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 checker
83Drugs
83 Moderate

Ingredients driving the most interactions

Manganese 83

Individual Drug Interactions

The ingredients in Manganese 15 mg interact with 83 drugs. Click any drug to see the details.

1 of the 1 ingredient in Manganese 15 mg interact with drugs. Each result below shows which ingredient is responsible. Manganese

Each ingredient & the kinds of drugs it affects

For each ingredient in Manganese 15 mg with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.

Manganese3 drug types · 83 drugs

Antipsychotic Drugs

Theoretically, the risk for manganese toxicity might increase when taken with antipsychotic drugs.
Hallucinations and behavioral changes have been reported in a patient with liver disease who was taking haloperidol and manganese. Researchers speculate that taking manganese along with haloperidol, phenothiazine-derivatives, or other antipsychotic medications might increase the risk of manganese toxicity in some patients.

Likelihood Possible Evidence D
Quinolone Antibiotics

Theoretically, manganese might reduce the absorption of quinolone antibiotics.
Manganese is a multivalent cation. Interactions resulting in reduced quinolone absorption have been reported between quinolones and other multivalent cations, such as calcium and iron.

Likelihood Probable Evidence D
Tetracycline Antibiotics

Theoretically, manganese might reduce the absorption of tetracycline antibiotics.
Manganese is a multivalent cation. Interactions resulting in reduced tetracycline absorption have been reported between tetracyclines and other multivalent cations, such as calcium and iron.

Likelihood Probable Evidence D
Manganese full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Manganese 15 mg, from the product label.

Douglas Cooper Co.

See all Douglas Cooper Co. products
Name
Douglas Cooper Co.
Street Address
377 Ridge Point Dr
City
Carmel
State
IN
ZipCode
46032
Phone Number
1-800-234-8686
Pharmacist Counseling Corner

Manganese 15 mg by Douglas Cooper Co.: Common Questions

Does Manganese 15 mg by Douglas Cooper Co. interact with any medications?
Yes. Based on its ingredients, Manganese 15 mg has a known interaction with 83 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Manganese 15 mg contains a single active ingredient, and that one ingredient can interact with many different medications on its own. We check it against each medication and show the mechanism responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
What is manganese, and what does it do in my body?
Manganese is a mineral your body needs in small amounts for bone health, metabolism, and wound healing. This supplement provides 15 mg per dose — most people get enough from food, but if your doctor has confirmed you're low, supplementing can help correct that deficiency.
Will this help my osteoarthritis or hay fever?
The evidence for manganese in those conditions isn't established in the data we have. If you're hoping to use it for either, talk with your doctor or pharmacist about whether it's worth trying and what the current research actually shows.
Is this safe if I'm breastfeeding?
The safety data we have on file for manganese and breastfeeding is mixed — some sources say it's likely safe, others say possibly or likely unsafe. There isn't a clear answer, so talk with your doctor or pharmacist to get personalized advice for your situation.
What are the side effects at this dose?
At 15 mg, manganese is generally well tolerated — serious side effects are rare. The concern is with much higher doses (like 100 mg daily) taken for years, which can cause nerve damage and Parkinson-like symptoms. Stick to the dose on the label.
Can I take this with my antibiotics?
Not at the same time — if you're taking a quinolone (like ciprofloxacin) or tetracycline (like doxycycline) antibiotic, manganese will block your body from absorbing the antibiotic properly. Take this supplement a few hours apart from those antibiotics, and talk to your pharmacist about the timing.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Not sure if Manganese 15 mg is safe with your meds?

Our pharmacists answer your medication & supplement questions — free.

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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.

Manganese 15 mg label
Go deeper

The Full Monographs Behind Manganese 15 mg’s Ingredients

Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.

Herb & supplement monograph

Manganese

Interacts with 83 drugs

Manganese is an essential trace mineral your body needs in small amounts for bone formation, metabolism, and antioxidant defense, and most people get enough from a normal diet. Supplements m...

Read the full Manganese monograph →
Sources

Sources & How We Checked

Manganese 15 mg'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.

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 21 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.

Manganese 21 references
  1. Hansten PD, Horn JR. Hansten and Horn's Drug Interactions Analysis and Management. Vancouver, CAN:Appl Therapeut, 1999.
  2. Barrington WW, Angle CR, Willcockson NK, et al. Autonomic function in manganese alloy workers. Environ Res 1998;78:50-8. PubMed
  3. Hauser RA, Zesiewicz TA, Martinez C, et al. Blood manganese correlates with brain magnetic resonance imaging changes in patients with liver disease. Can J Neurol Sci 1996;23:95-8. PubMed
  4. Food and Nutrition Board, Institute of Medicine. Dietary Reference Intakes for Vitamin A, Vitamin K, Arsenic, Boron, Chromium, Copper, Iodine, Iron, Manganese, Molybdenum, Nickel, Silicon, Vanadium, and Zinc. Washington, DC: National Academy Press, 2002.
  5. Lee JW. Manganese intoxication. Arch Neurol 2000;57:597-9.. PubMed
  6. Powers KM, Smith-Weller T, Franklin GM, et al. Parkinson's disease risks associated with dietary iron, manganese, and other nutrient intakes. Neurology 2003;60:1761-6.. PubMed
  7. McMillan, D. E. A brief history of the neurobehavioral toxicity of manganese: some unanswered questions. Neurotoxicology 1999;20(2-3):499-507.
  8. Gerber, G. B., Leonard, A., and Hantson, P. Carcinogenicity, mutagenicity and teratogenicity of manganese compounds. Crit Rev Oncol Hematol. 2002;42(1):25-34. PubMed
  9. Jiang, Y. and Zheng, W. Cardiovascular toxicities upon manganese exposure. Cardiovasc.Toxicol 2005;5(4):345-354. PubMed
  10. Mehta, R. and Reilly, J. J. Manganese levels in a jaundiced long-term total parenteral nutrition patient: potentiation of haloperidol toxicity? Case report and literature review. JPEN J Parenter.Enteral Nutr 1990;14(4):428-430. PubMed
  11. Nemery, B. Metal toxicity and the respiratory tract. Eur Respir.J 1990;3(2):202-219. DOI
  12. Vanek VW, Borum P, Buchman A, et al. A.S.P.E.N. position paper: recommendations for changes in commercially available parenteral multivitamin and multi-trace element products. Nutr Clin Pract. 2012;27:440-491.doi: 10.1177/0884533612446706 PubMed
  13. Schuh MJ. Possible Parkinson's disease induced by chronic manganese supplement ingestion. Consult Pharm. 2016;31(12):698-703. doi: 10.4140/TCP.n.2016.698. PubMed
  14. Baker B, Ali A, Isenring L. Recommendations for manganese supplementation to adult patients receiving long-term home parenteral nutrition: an analysis of the supporting evidence. Nutr Clin Pract 2016;31(2):180-5. doi: 10.1177/0884533615591600. PubMed
  15. Ho CSH, Ho RCM, Quek AML. Chronic manganese toxicity associated with voltage-gated potassium channel complex antibodies in a relapsing neuropsychiatric disorder. Int J Environ Res Public Health 2018;15(4). pii: E783. doi: 10.3390/ijerph15040783. PubMed
  16. Yamamoto M, Sakurai K, Eguchi A, et al.; Japan Environment and Children's Study Group: Association between blood manganese level during pregnancy and birth size: the Japan environment and children's study (JECS). Environ Res 2019;172:117-26. PubMed
  17. Li D, Ge X, Liu Z, et al. Association between long-term occupational manganese exposure and bone quality among retired workers. Environ Sci Pollut Res Int 2020;27(1):482-9. PubMed
  18. Martin KV, Sucharew H, Dietrich KN, et al. Co-exposure to manganese and lead and pediatric neurocognition in East Liverpool, Ohio. Environ Res 2021;202:111644. PubMed
  19. Racette BA, Nelson G, Dlamini WW, et al. Depression and anxiety in a manganese-exposed community. Neurotoxicology 2021;85:222-33. PubMed
  20. Ruiz-Azcona L, Fernández-Olmo I, Expósito A, et al. Impact of environmental airborne manganese exposure on cognitive and motor functions in adults: a systematic review and meta-analysis. Int J Environ Res Public Health 2021;18(8):4075. PubMed
  21. Uyar E, Gurkas E, Aksu AU, et al. Can therapeutic plasma exchange be life-saving in life-threatening manganese intoxication?. Transfus Apher Sci 2022;61(4):103417. PubMed

See these in context on the Manganese monograph →

Parts of this content are provided by the Therapeutic Research Center, LLC.

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.

© 2021 Therapeutic Research Center, LLC

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