Baby Safety / Compounds / Barium sulfate

Is Barium sulfate safe for babies and kids?

Moderate risk for kids

Infants are more vulnerable to Barium sulfate than children or adults due to immature hepatic/renal clearance, higher intake-to-body-weight ratio, rapid organ development, and increased gastrointestinal absorption.

What is barium sulfate?

Also known as: Baritop, Barium sulphate, Barosperse, Esophotrast.

CAS number
7727-43-7
Molecular formula
BaO4S
Molecular weight
233.39 g/mol
SMILES
[O-]S(=O)(=O)[O-].[Ba+2]
PubChem CID
24414

Risk for babies

Moderate risk

Infants are more vulnerable to Barium sulfate than children or adults due to immature hepatic/renal clearance, higher intake-to-body-weight ratio, rapid organ development, and increased gastrointestinal absorption.

Neonates and infants up to 12 months have incomplete blood-brain barrier development, immature Phase I/II metabolic enzymes (particularly CYP3A4, UGT1A1), and higher gastrointestinal permeability. Equivalent doses produce higher internal concentrations and longer residence times.

What to do: Minimize infant exposure through source control. For breastfeeding mothers: reduce maternal exposure. For formula-fed infants: use certified low-migration bottles and verified water sources. Consult pediatrician regarding any concerns.

Risk for pregnant and nursing people

Context-dependent

Pregnancy alters the metabolism and distribution of Barium sulfate, potentially increasing fetal exposure. The developing embryo/fetus is vulnerable during organogenesis (weeks 3-8) and neurological development. Placental transfer should be assumed.

No specific reproductive toxicity data identified, but pregnancy-specific safety data is limited for most chemicals. Precautionary minimization of exposure is recommended.

What to do: Minimize exposure during pregnancy and lactation. Consult healthcare provider regarding specific risks. Consider alternative products with lower hazard profiles.

Regulatory consensus

1 regulatory bodyhas classified Barium sulfate.

AgencyYearClassificationNotes
Unknown——

Regulators apply different standards of evidence — animal-data weighting, exposure-pattern assumptions, epidemiological power thresholds — which is why two scientific bodies can review the same data and reach different conclusions. The disagreement is the data.

Where kids encounter barium sulfate

  • Consumer Products — personal care, industrial, food contact

Safer alternatives

Lower-risk approaches that achieve a similar outcome to Barium sulfate:

  • N/A — inert material
    Trade-offs: Alternative colorant; lightfastness, heat stability, and migration properties vary; regulatory approval for intended use required (FDA for food/cosmetics, EU 1223/2009 for cosmetics); shade matching needed.
    Relative cost: 1.2-2×

Frequently asked questions

Is barium sulfate safe for kids?

Infants are more vulnerable to Barium sulfate than children or adults due to immature hepatic/renal clearance, higher intake-to-body-weight ratio, rapid organ development, and increased gastrointestinal absorption.

What products contain barium sulfate?

Barium sulfate appears in: personal care (Consumer products); industrial (Consumer products).

What should I do if my child is exposed to barium sulfate?

Minimize infant exposure through source control. For breastfeeding mothers: reduce maternal exposure. For formula-fed infants: use certified low-migration bottles and verified water sources. Consult pediatrician regarding any concerns.

See Barium sulfate in the baby app

Look up products containing barium sulfate, compare to alternatives, and explore the full data record.

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Sources (1)
  1. PubChem (2026) — database

Reference data, not professional advice. Aggregates publicly available regulatory and scientific data; not a substitute for veterinary, medical, legal, or regulatory advice. Why we built ALETHEIA →