AG 200 Colloidal Silver Ingredients & Drug Interactions
What is this page for?
First and foremost: checking AG 200 Colloidal Silver 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
AG 200 Colloidal Silver is a dietary supplement by Natural Guardian with 1 active ingredient. Its ingredients are commonly taken for infections (claimed antimicrobial), wound care and skin issues, sore throat or cold symptoms.We don’t currently list a known drug interaction for its mapped ingredients — but that doesn’t guarantee none exist, so always confirm with your pharmacist.
HelloPharmacist Scorecard of AG 200 Colloidal Silver by Natural Guardian
Four independent checks of what is known — a summary of the available information, not a grade of the product itself.
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
The stated purpose hasn't been mapped to our evidence data yet.
Why this rating?
- We haven't mapped this product's purpose to our evidence data yet — it'll be graded on the next content refresh.
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.
No medication interactions are currently documented for the matched ingredients — that isn't a guarantee none exist.
Why this rating?
- None of the 1 matched ingredient has a documented medication interaction on file.
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.
HelloPharmacist summaryFully disclosed formula with no assessable stated purpose. No medication interactions are currently documented, and safety information is well characterized.
Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Nov 25, 2011.
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 AG 200 Colloidal Silver, straight from the product label.
| Brand | Natural Guardian |
|---|---|
| Net contents | 8 oz.; 236 mL |
| Market status | Off market |
| Date entered into DSLD | Nov 25, 2011 |
| DSLD ID | 1987 |
| Product type | Mineral |
| Supplement form | Liquid |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years) |
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 AG 200 Colloidal Silver by Natural Guardian, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Calories | 0 {Calories} | -- |
| Calories from Fat | 0 {Calories} | -- |
| Colloidal Silver | 200 ppm | -- |
Other ingredients: purified Water, Bio Balance pH, Trace Minerals
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.
FDA Statement of Identity
Dietary Supplement
It Is Sold As A Dietary Supplement Only.
Suggested/Recommended/Usage/Directions
Directions: mix 1 oz (30 ml) with 20 oz of distilled water and then use.
FDA Disclaimer Statement
These Statements Have Not Been Evaluated By The Food & Drug Administration (FDA) Any Claims, Written, Oral Or Implied, Regarding The Advantages Of This Product Are Neither Endorsed Nor Approved By Natural Guardian International.
This Product Is Not Intended To Diagnose, Treat, Prevent, Or Cure Any Disease.
General Statements
AG 200 Colloidal Silver is a powerful, natural antiseptic-germicide-bacteriacide. It is beneficial for use on acne, cuts, burns and abrasions.
Before the development of pharmaceutical antibiotics, medical practitioners relied on colloidal silver for a wide range of antiseptic treatments. Colloidal Silver has long been recognized for its effectiveness as a topical antiseptic.
Effective Natural Immune Enhancer
This is a concentrated source of colloidal silver. This 8 oz bottle produces 160 oz. Of 10 ppm solution.
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
AG 200 Colloidal Silver by Natural Guardian 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 AG 200 Colloidal Silver by Natural Guardian
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size1 Ounce(s) Dosage formLiquid Servings per container8 Amounts shown are per serving.
Colloidal Silver
No knowninteractions
Colloidal silver is a liquid product containing tiny silver particles that is marketed for infections and immune support, but there is no reliable sci...
Colloidal Silver monograph & interactionsOther (inactive) ingredients: Purified Water, Bio Balance pH, Trace Minerals. These complete the product’s ingredient list but are not active constituents.
AG 200 Colloidal Silver by Natural Guardian Drug Interactions
We don’t currently list any known drug interactions for the mapped ingredients in AG 200 Colloidal Silver. This doesn’t guarantee none exist — always confirm with your pharmacist before combining a supplement with your medications.
Brand information
Manufacturer and brand details for AG 200 Colloidal Silver, from the product label.
AG 200 Colloidal Silver by Natural Guardian: Common Questions
Does AG 200 Colloidal Silver by Natural Guardian interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if AG 200 Colloidal Silver 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 AG 200 Colloidal Silver’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
AG 200 Colloidal Silver'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 18 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.
Colloidal Silver 18 references
- Fung MC, Bowen DL. Silver products for medical indications: risk-benefit assessment. J Toxicol Clin Toxicol 1996;34:119-26. PubMed
- Fung MC, Weintraub M, Bowen DL. Colloidal silver proteins marketed as health supplements. JAMA 1995;274:1196-7. PubMed
- Fung MC, Weintraub M, Bowen DL. Colloidal silver proteins marketed as health supplements. JAMA 1995;274:1196-7. PubMed
- Gulbranson SH, Hud JA, Hansen RC. Argyria following the use of dietary supplements containing colloidal silver protein. Cutis 2000;66:373-4.
- Hori K, Martin TG, Rainey P, Robertson WO. Believe it or not--silver still poisons! Vet Hum Toxicol 2002;44:291-2..
- McKenna JK, Hull CM, Zone JJ. Argyria associated with colloidal silver supplementation. Int J Dermatol 2003;42:549.. PubMed
- Cohen LE, Spurlock R, Salem A, Mercado E. Argyria in the silver state. Federal Practitioner 2004;April:9-17.
- Mirsattari, S. M., Hammond, R. R., Sharpe, M. D., Leung, F. Y., and Young, G. B. Myoclonic status epilepticus following repeated oral ingestion of colloidal silver. Neurology 4-27-2004;62(8):1408-1410. PubMed
- Stepien, K. M., Morris, R., Brown, S., Taylor, A., and Morgan, L. Unintentional silver intoxication following self-medication: an unusual case of corticobasal degeneration. Ann Clin Biochem. 2009;46(Pt 6):520-522. PubMed
- Griffith RD, Simmons BJ, Yazdani Abyaneh MA, Bray FN, Falto-Aizpurua LA, Nouri K. Colloidal Silver: Dangerous and Readily Available. JAMA Dermatol. 2015;151(6):667-8.
- Park SW, Shin HT, Lee KT, Lee DY. Medical concern for colloidal silver supplementation: agyria of the nail and face. Ann Dermatol. 2013;25(1):111-2.
- Butzmann CM, K Technau-Hafsi, Bross F. "Silver man" argyria of the skin after ingestion of a colloidal silver solution. J Dtsch Dermatol Ges. 2015;13(10):1030-2. PubMed
- Hadrup N, Lam HR. Oral toxicity of silver ions, silver nanoparticles and colloidal silver-- a review. Regul Toxicol Pharmacol. 2014;68(1):1-7. PubMed
- Natelson EA, Baker KR, Pyatt DW. Anemia and leukopenia following intravenous colloidal silver infusions-Clinical and hematological features, unique peripheral blood film appearance and effective therapy with supplemental oral copper and apheresis. Clin Ca PubMed
- Tobarran N, Hieger MA. Acute silver toxicity from colloidal silver overdose. Am J Ther. 2019. PubMed
- Keung YK, Wang T, Hong-Lung Hu E. Acute myeloid leukemia with complex cytogenetic abnormalities associated with long-term use of oral colloidal silver as nutritional supplement - Case report and review of literature. J Oncol Pharm Pract. 2020;26(1):212-21 PubMed
- Hu D, Yuen C. Seizures Following Self-Medication With Colloidal Silver: A Case Report. Hosp Pharm 2023;58(4):350-352. PubMed
- Stjernbrandt A. Colloidal silver ingestion and severe anemia - A case report. Toxicol Rep 2023;11:270-272. PubMed
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