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Tandem Plus

product on market Capsule US Pharmaceutical Corporation Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 67% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

This profile contains B-complex vitamins and Vitamin C, which are supported by strong evidence for supporting cellular energy metabolism and antioxidant function. These nutrients act as essential cofactors in various biochemical reactions throughout the body. The evidence coverage for this specific combination is limited.

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

Label

Product Label

Label for Tandem Plus
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Capsule(s)
Serving Size
Other Combinations
Product Type
67%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Vitamin C
187 mg (312% DV)
10.3 mg (687% DV)
8.6× RDA — above typical dose 76 studies (A:0, B:33)
6 mg (353% DV)
4.6× RDA — above typical dose 13 studies (A:0, B:1)
30 mg (150% DV)
2.1× RDA — within safe limits 196 studies (A:5, B:63)
5 mg (250% DV)
3.8× RDA — above typical dose (UL: 100 mg) 114 studies (A:3, B:35)
1000 mcg (250% DV)
2.5× RDA — within safe limits 226 studies (A:10, B:105)
20 mcg (333% DV)
8.3× RDA — above typical dose 139 studies (A:1, B:44)
10 mg (100% DV)
2.0× RDA — within safe limits 2 studies — no high-quality reviews
Iron
106 mg (589% DV)
18.2 mg (121% DV)
1.7× RDA — within safe limits 263 studies (A:6, B:134)
800 mcg (40% DV)
Within RDA (0.9× RDA) 37 studies (A:0, B:11)
1.3 mg
Within RDA (0.6× RDA) 9 studies — no high-quality reviews

Other Ingredients

Sodium Ascorbate Gelatin Zinc Sulfate Niacinamide Calcium D-Pantothenate Thiamine Mononitrate Silicon Dioxide Pyridoxine Hydrochloride Magnesium Stearate Manganese Sulfate Titanium Dioxide Copper Sulfate Dibasic Calcium Phosphate FDA/E172 Red Iron Oxide Cyanocobalamin
Claims

Label Claims — Verification

Unverified All Other
Info

Product Information

Directions for Use

DOSAGE AND ADMINISTRATION: Adults (persons over 12 years of age), one (1) capsule daily, between meals, or as prescribed by a physician. Do not exceed recommended dosage.

Warnings & Precautions

Do not administer to children under the age of 12.

CAUTION: Rx only.

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.

You should contact your healthcare provider for medical advice about adverse events.

Formulation Notes

INDICATIONS: Tandem(R) Plus is indicated for the treatment of iron deficiency anemia and folate deficiency as normally found in extended convalescence, menorrhagia, pregnancy, puberty, excessive blood loss and advanced age. Also for correction of condition in which iron deficiency and vitamin C deficiency occur together, along with a deficient intake or increased need for B-Complex vitamins in chronic and acute illness, as well as cases of metabolic stress, and in convalescence.

Additional Information

To report a serious adverse event, contact US Pharmaceutical Corporation, P.O. Box 360465, Decatur, GA 30036

Consult package insert for full prescription information.

Rev. 04/2011 LC-10383

Store at controlled room temperature 15(0) to 30(0)C (59(0) to 86(0)F). Keep in a cool, dry place.

Capsules are not USP.

Metadata

Product Details

UPC / SKU52747902600411
DSLD Entry Date2013-10-25
Product TypeOther Combinations
FormCapsule
BrandUS Pharmaceutical Corporation
DSLD ID26608
Data Updated2026-04-11
Research

Research Evidence

371
Research Sources
54
Avg Quality
148
Meta Analysis
82
Systematic Review
71
Rct
62
Clinical Trial
2
Regulatory Source
1
Cochrane Review
1
Narrative Review
1
Other
1
Openfda Safety
A Vitamin C supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015 PubMed DOI
A Vitamin C supplementation for the primary prevention of cardiovascular disease
Systematic Review The Cochrane database of systematic reviews 2017 PubMed DOI
A Vitamin C for preventing and treating the common cold
Meta Analysis The Cochrane database of systematic reviews 2013 PubMed DOI
A Vitamin C for preventing and treating pneumonia
Meta Analysis The Cochrane database of systematic reviews 2013 PubMed DOI
A Vitamin E supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015 PubMed DOI
A Vitamin C supplementation for prevention and treatment of pneumonia
Meta Analysis The Cochrane database of systematic reviews 2020 PubMed DOI
A Vitamin C supplementation for prevention and treatment of pneumonia
Systematic Review The Cochrane database of systematic reviews 2021 PubMed DOI
A Nutritional interventions for preventing and treating pressure ulcers
Meta Analysis The Cochrane database of systematic reviews 2024 PubMed DOI
A Does Vitamin C Supplementation Provide a Protective Effect in Periodontal Health? A Systematic Review and Meta-Analysis
Meta Analysis International journal of molecular sciences 2024 PubMed DOI
A Circulating vitamin C concentration and risk of cancers: a Mendelian randomization study
Meta Analysis BMC medicine 2021 PubMed DOI
View all evidence for Vitamin C →
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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.