1 Product identity

Ingredient risk

5 ingredients to use with caution

Vira-Sin-C

Name: Vira-Sin-C
Brand: Douglas Laboratories

BrandDouglas Laboratories→Other Combinations Other (e.g. tea bag) 43 ingredients 5 caution DSLD #8902

Net contents: 15 Pack(s)

Target: Adults and Children 4 years and above

DSLD entry: 2012-06-01

2 Ingredients (43)

IngredientGroupSafety

Vitamin AVitamin A (unspecified)—

Vitamin CVitamin CGenerally Safe

Vitamin EVitamin EConditionally Safe

DL-Alpha-Tocopheryl AcetateVitamin EConditionally Safe

ThiamineThiaminUse with Caution

RiboflavinRiboflavinGenerally Safe

NiacinamideNiacinConditionally Safe

Vitamin B6Vitamin B6Use with Caution

Vitamin B12Vitamin B12Use with Caution

Pantothenic AcidVitamin B5—

CalciumCalciumConditionally Safe

IodineIodineConditionally Safe

MagnesiumMagnesiumUse with Caution

ZincZincUse with Caution

SeleniumSeleniumConditionally Safe

CopperCopperConditionally Safe

Manganese—Conditionally Safe

ChromiumChromiumConditionally Safe

MolybdenumMolybdenumGenerally Safe

PotassiumPotassiumConditionally Safe

Pure Bee PollenBee PollenConditionally Safe

raw Thymus ConcentrateThymus—

raw Spleen ConcentrateSpleen—

Raw Lymph ConcentrateLymph—

Citrus BioflavonoidsFlavonoid (mixture)—

RutinRutin—

Raw Pituitary ConcentratePituitary—

Hesperidin ComplexBlend (non-nutrient/non-botanical)—

AcerolaAcerola—

SiliconSiliconGenerally Safe

BoronBoronConditionally Safe

VanadiumVanadiumLimited Evidence

Alfalfa cereal grassAlfalfa—

Rose HipsRose (unspecified)—

lecithinlecithin—

Fish Liver OilFish Liver oil—

GelatinGelatin—

CelluloseCellulose—

vegetable oil——

GlycerinGlycerol—

WaterWater—

SilicaSiliconGenerally Safe

Vegetable StearateMagnesium stearateUse with Caution

Ingredient amounts require the full DSLD label. View full label at NIH DSLD →

⚠️ Use with caution — restricted in some markets

Thiamin — Wernicke encephalopathy: classic triad (confusion, ophthalmoplegia, ataxia) is present in only 16% of cases — any ONE element in an at-risk patie…

Vitamin B6 — Sensory neuropathy from chronic high-dose B6 (>200 mg/day) — presents as numbness, ataxia. Can be irreversible. Often self-prescribed by patients…

Vitamin B12 — Nitrous oxide anesthesia in subclinically B12-deficient patients can precipitate acute combined degeneration — always check B12 before elective p…

Magnesium — Severe deficiency (<0.50 mmol/L) causes secondary hypocalcemia and hypokalemia that will not correct until magnesium is repleted first [1].

Zinc — Chronic zinc >40 mg/day without copper causes copper deficiency: anemia, neutropenia, myeloneuropathy [1].

3 Safety cross-reference

Vitamin A — Limited Evidence

⚠ Teratogenic at high doses

⚠ Hepatotoxic with chronic excess

Vitamin C — Generally Safe

⚠ GI distress at high doses

⚠ Kidney stones risk >1g/day

Vitamin E — Conditionally Safe

⚠ Increased bleeding risk

⚠ All-cause mortality at >400 IU/day

Thiamin — Use with Caution

⚠ Very low toxicity

Riboflavin — Generally Safe

⚠ Harmless yellow urine

Niacin — Conditionally Safe

⚠ Flushing at >50 mg

⚠ Hepatotoxicity at high doses

Vitamin B6 — Use with Caution

Vitamin B12 — Use with Caution

Pantothenic Acid — Limited Evidence

⚠ Diarrhea at very high doses

Calcium — Conditionally Safe

⚠ Cardiovascular risk debated >1,000 mg/day

⚠ Kidney stones

Iodine — Conditionally Safe

⚠ Thyroid dysfunction at excess

⚠ Kelp: variable content

Magnesium — Use with Caution

⚠ Diarrhea (especially oxide)

⚠ Accumulates in renal impairment

Zinc — Use with Caution

⚠ Copper deficiency at >40 mg/day

⚠ Nausea, metallic taste

Selenium — Conditionally Safe

⚠ Selenosis >400 mcg

⚠ Diabetes risk at high doses

Copper — Conditionally Safe

⚠ Hepatotoxicity at high doses

Manganese — Conditionally Safe

⚠ Neurotoxicity with chronic excess

Chromium — Conditionally Safe

⚠ Hypoglycemia with diabetes meds

⚠ Rare renal/hepatic toxicity

Molybdenum — Generally Safe

⚠ Very low toxicity

Potassium — Conditionally Safe

⚠ Hyperkalemia risk

⚠ Dangerous with ACE inhibitors

Bee Pollen — Conditionally Safe

⚠ ALLERGIC REACTIONS — potentially severe/anaphylaxis

⚠ Cross-reacts with pollen allergies

Silicon — Generally Safe

⚠ Very low toxicity

Boron — Conditionally Safe

⚠ Reproductive toxicity in animals

Vanadium — Limited Evidence

⚠ GI toxicity: nausea, vomiting, diarrhea

⚠ Green tongue

4 Label claims

• All Other

5 Data source

DSLD ID8902

Full labelView at NIH DSLD →

SourceOffice of Dietary Supplements, NIH

Market statusOn market

Entry date2012-06-01

6 More from Douglas Laboratories

View Douglas Laboratories Safety Scorecard → 788 products

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7 Cite this page

Vancouver

Pkhakadze G. Vira-Sin-C — product analysis [Internet]. Tbilisi: Public Health Institute of Georgia; 2026 [cited 2026 Jun 24]. Available from: https://supplement.ge/products/vira-sin-c-8902/

CC BY 4.0. Product data from NIH DSLD; safety analysis by SupplementIndex.

Analyzed by SupplementIndex

PHIG · Editor-in-Chief: Prof. Giorgi Pkhakadze, MD, MPH, PhD

Product data sourced from the NIH Dietary Supplement Label Database (DSLD). Safety cross-referencing by SupplementIndex. This analysis is for informational purposes only. For corrections: info@accreditation.ge.
Publisher: PHIG