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Dietary supplement

8 Manganese Ingredients & Drug Interactions

by Somaplex

8 Manganese label
See full label image
Liquid 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 8 Manganese 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

8 Manganese is a dietary supplement by Somaplex 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 Sulfate. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against 8 Manganese by Somaplex

Ask about any prescription or over-the-counter medication and we check it for interactions with 8 Manganese by Somaplex — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of 8 Manganese by Somaplex

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 Jul 12, 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 supplement contains one active ingredient: manganese sulfate, a form of the mineral manganese. The liquid also includes water and ethyl alcohol as inactive ingredients.

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 sulfate is effective for manganese deficiency. For other uses — hay fever, bone health, lung disease, weight, or joint health — the evidence isn't established in our data.

If you're taking this for one of those reasons, talk to your pharmacist about what research supports it.

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 is generally well tolerated in appropriate doses, but high-dose supplements can be harmful. At very high intakes, it can cause serious nerve damage (Parkinson-like symptoms) and even liver damage.

One severe case involved 100 mg daily for 2–4 years and led to irreversible Parkinson disease. Another case in a teenager showed manganese toxicity can cause life-threatening neurological symptoms and incomplete cirrhosis, requiring intensive treatment.

For pregnancy: amounts in foods and prenatal vitamins are fine, but skip extra high-dose supplements unless your doctor advises it. For breastfeeding: the safety data is mixed — some sources rate it likely safe, others possibly unsafe or likely unsafe — so check with your doctor or pharmacist before taking this if you're 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.

Check before taking this if you use antipsychotic drugs (like haloperidol or phenothiazines), quinolone antibiotics (like ciprofloxacin), or tetracycline antibiotics (like doxycycline). Both antibiotics might not work as well, and antipsychotics carry a moderate risk of increased manganese toxicity.

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 product is useful if you have a true manganese deficiency, but it's not proven for hay fever, bone, lung, weight, or joint issues. If you take antipsychotic or antibiotic medications, double-check with us first — this supplement can interfere with them.

Stick to appropriate doses; high doses carry real nerve and liver 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 Sep 25, 2013.

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 8 Manganese, straight from the product label.

Brand Somaplex
Net contents 1 fl. Oz.; 29.5 mL
Market status On market
Date entered into DSLD Sep 25, 2013
DSLD ID 25325
Product type Mineral
Supplement form Liquid
Dietary claims / uses All Other
Intended target group(s) Adult (18 - 50 Years), Children (All)
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 8 Manganese by Somaplex, 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:
0.225 mL
Maximum serving Sizes:
0.45 mL
Servings per container
66
IngredientAmount% DV
Manganese Sulfate0.044 mg--

Other ingredients: Water, ethyl alcohol

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: Adults take 15 drops on the tongue or in 1 oz. water two times daily. Children receive 1/2 or less of the adult amount.

Precautions

Tamper Evident: Use this product only if tamper evident ring has not been broken away from base of cap.

General

3192

General Statements

IONIZED TRACE ELEMENTS

>>NESTMANN<<

Made in Germany Nestmann Pharma Zapfendorf/Bamberg

FDA Statement of Identity

SUPPLEMENT

Seals/Symbols

MPI

Is this label outdated? Report a formula or label change and our pharmacy team will review it.

See for yourself

8 Manganese by Somaplex label

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

8 Manganese 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 8 Manganese by Somaplex

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

Serving size0.225 mL Dosage formLiquid Servings per container66 Amounts shown are per serving.

Manganese Sulfate

Interacts with
83 drugs
0.044 mg per serving

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

Manganese Sulfate monograph & interactions

Other (inactive) ingredients: Water, Ethyl alcohol. These complete the product’s ingredient list but are not active constituents.

Interaction report

8 Manganese by Somaplex Drug Interactions

Want to check YOUR meds against 8 Manganese?

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 Sulfate 83

Individual Drug Interactions

The ingredients in 8 Manganese interact with 83 drugs. Click any drug to see the details.

1 of the 1 ingredient in 8 Manganese interact with drugs. Each result below shows which ingredient is responsible. Manganese Sulfate

Each ingredient & the kinds of drugs it affects

For each ingredient in 8 Manganese 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.

Manganese Sulfate3 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 Sulfate full monograph & interactions
The maker

Brand information

Manufacturer and brand details for 8 Manganese, from the product label.

Somaplex

See all Somaplex products
Name
Marco Pharma Int'l
City
Roseburg
State
OR
ZipCode
97470
Pharmacist Counseling Corner

8 Manganese by Somaplex: Common Questions

Does 8 Manganese by Somaplex interact with any medications?
Yes. Based on its ingredients, 8 Manganese 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?
8 Manganese 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 sulfate, and what does it do?
Manganese sulfate is a mineral form of manganese, an element your body needs in small amounts for bone development, metabolism, and nerve function. This product is effective for treating manganese deficiency.
Is this safe to take while breastfeeding?
The safety data for breastfeeding is mixed — some sources rate it likely safe, others rate it possibly unsafe or likely unsafe. Talk with your doctor or pharmacist about whether this is right for you while nursing.
Can I take this with antibiotics?
It depends on which antibiotic. Quinolone antibiotics (like ciprofloxacin) and tetracycline antibiotics (like doxycycline) may not absorb as well if you take manganese at the same time. Check with your pharmacist about spacing or timing.
Will this help my joint pain or hay fever?
The evidence for those uses isn't established in our data. Manganese is only proven effective for manganese deficiency. If you're hoping to treat something else, ask your pharmacist whether research supports it.
What happens if I take too much?
High-dose manganese supplements can cause serious nerve damage, including Parkinson-like symptoms, and liver damage. Stick to appropriate doses, and don't exceed what's recommended on the label without talking to your doctor.
Is this safe in pregnancy?
Amounts in foods and prenatal vitamins are fine, but avoid extra high-dose supplements unless your doctor advises it.

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

Not sure if 8 Manganese is safe with your meds?

Our pharmacists answer your medication & supplement questions — free.

Ask a pharmacist

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.

8 Manganese label
Go deeper

The Full Monographs Behind 8 Manganese’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

8 Manganese'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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