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Ferrous Sulfate 325 mg

product on market Tablet or Pill Marlex Pharmaceuticals Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 20% of ingredients have research evidence
B Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

Ferrous sulfate provides elemental iron, which is supported by strong evidence for treating iron deficiency anemia. The inclusion of sodium, calcium, magnesium, and potassium provides basic mineral support, though evidence for their combined efficacy in this specific formulation is limited. This profile maintains a high safety rating for general use.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Label for Ferrous Sulfate 325 mg
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Tablet(s)
Serving Size
100
Servings
Mineral
Product Type
20%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Iron
65 mg (361% DV)
Sodium
0.83 mg
Calcium
11.04 mg
0.21 mg
Market median: 500.0mg (1 products) 316 studies (A:8, B:159)
Potassium
0.006 mg

Other Ingredients

Silicon Dioxide, Colloidal Croscarmellose Sodium FD&C Blue #1 Lake FD&C Yellow #6 Hypromellose Microcrystalline Cellulose Mineral Oil Polyethylene Glycol 400 Titanium Dioxide Magnesium Stearate Stearic Acid
Claims

Label Claims — Verification

Unverified All Other
Info

Product Information

Directions for Use

Directions: Age - Dosage Adults and children 12 years of age and over - Take one tablet daily, preferably after a meal, or as directed by a physician. Children under 12 years of age - Consult a physician. Do not chew or crush tablet.

Warnings & Precautions

Warnings: Since oral iron products interfere with absorption of oral tetracycline antibiotics, these products should not be taken within two hours of each other.

Iron-containing products may cause constipation or diarrhea.

As with any dietary supplement, if you are pregnant or nursing a baby, seek advice of a healthcare professional before using this product.

Warning: Accidental overdose of iron-containing products is a leading cause of fatal poisoning in children under 6. Keep this product out of reach of children. In case of accidental overdose, call a doctor or poison control center immediately.

Formulation Notes

Film-coated tablets

(5 grains)

Contains the following: - Sodium: 0.83 mg per tablet Calcium: 11.04 mg per tablet - Magnesium: 0.21 mg per tablet Potassium: 0.006 mg per tablet

Additional Information

NDC 10135-0690-01

Other information: Store in a cool, dry place at controlled temperature 15-30 degrees C (59-86 degrees F) - Protect from moisture - Store in original container for better identification

Metadata

Product Details

UPC / SKU3 10135 69001 5
DSLD Entry Date2021-11-19
Product TypeMineral
FormTablet or Pill
BrandMarlex Pharmaceuticals
DSLD ID263347
Data Updated2026-04-11
Research

Research Evidence

566
Research Sources
56
Avg Quality
240
Meta Analysis
100
Clinical Trial
74
Systematic Review
71
Guideline
58
Rct
11
Cochrane Review
4
Regulatory Source
2
Other
2
Narrative Review
1
Observational
1
Openfda Safety
A Systematic review and meta-analysis of intravenous iron therapy for patients with heart failure and iron deficiency
Meta Analysis Nature medicine 2025 PubMed DOI
A Intermittent iron supplementation for reducing anaemia and its associated impairments in adolescent and adult menstruating women
Meta Analysis The Cochrane database of systematic reviews 2019 PubMed DOI
A Oral or parenteral iron supplementation to reduce deferral, iron deficiency and/or anaemia in blood donors
Meta Analysis The Cochrane database of systematic reviews 2014 PubMed DOI
A Serum or plasma ferritin concentration as an index of iron deficiency and overload
Meta Analysis The Cochrane database of systematic reviews 2021 PubMed DOI
A Non-invasive diagnostic tests for Helicobacter pylori infection
Meta Analysis The Cochrane database of systematic reviews 2018 PubMed DOI
A Hypoxia-inducible factor stabilisers for the anaemia of chronic kidney disease
Meta Analysis The Cochrane database of systematic reviews 2022 PubMed DOI
A Wheat flour fortification with iron and other micronutrients for reducing anaemia and improving iron status in populations
Meta Analysis The Cochrane database of systematic reviews 2021 PubMed DOI
A Fortification of condiments and seasonings with iron for preventing anaemia and improving health
Meta Analysis The Cochrane database of systematic reviews 2023 PubMed DOI
A Screening and Supplementation for Iron Deficiency and Iron Deficiency Anemia During Pregnancy: US Preventive Services Task Force Recommendation Statement.
Guideline JAMA 2024 PubMed DOI
A Psychiatric and cognitive outcomes of iron supplementation in non-anemic children, adolescents, and menstruating adults: A meta-analysis and systematic review
Meta Analysis Neuroscience and biobehavioral reviews 2025 PubMed DOI
View all evidence for Iron →
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.