# Bismuth Citrate (CAS 813-93-4): Complete Guide to This Gastrointestinal Health Supplement

## What is Bismuth Citrate?

Bismuth citrate is a chemical compound composed of bismuth and citric acid, with the molecular formula C6H5BiO7 and a molecular weight of 398.08 g/mol. This white to off-white crystalline powder is highly soluble in water and forms a clear, colorless solution. Bismuth citrate is widely used in the pharmaceutical and nutritional supplement industries for its beneficial effects on gastrointestinal health.

Bismuth has been used medicinally for centuries, with records dating back to ancient times when bismuth compounds were used to treat digestive ailments. Today, bismuth citrate is recognized as one of the most effective and safe bismuth compounds for oral supplementation.

This compound is classified as a food additive (Food Additives category) and is also used in various pharmaceutical formulations. It is commonly available in capsule, tablet, and powder forms for dietary supplementation.

## What Are the Benefits of Bismuth Citrate?

### Gastrointestinal Protection

Bismuth citrate provides significant protective benefits for the gastrointestinal tract:

– **Ulcer Prevention**: Helps protect the stomach lining from acid damage and promotes healing of existing ulcers
– **Mucosal Coating**: Forms a protective layer over the stomach lining, shielding it from gastric acid and irritants
– **Anti-inflammatory Properties**: Reduces inflammation in the gastrointestinal mucosa

### Helicobacter pylori Management

One of the most significant benefits of bismuth citrate is its effectiveness against Helicobacter pylori:

– **Antibacterial Activity**: Bismuth compounds have been shown to inhibit the growth of H. pylori, a bacterium linked to peptic ulcers and gastritis
– **Combination Therapy**: Often used as part of triple or quadruple therapy regimens for H. pylori eradication
– **Reduced Relapse Rates**: When used in H. pylori treatment, bismuth helps reduce ulcer recurrence

### Diarrhea Relief

Bismuth citrate is effective in managing various types of diarrhea:

– **Antimicrobial Effect**: Helps combat pathogenic bacteria that cause infectious diarrhea
– **Reduced Fluid Secretion**: Decreases excessive fluid secretion in the intestines
– **Symptom Relief**: Provides quick relief from acute diarrhea symptoms

### Acid Neutralization

– **Mild Antacid Properties**: Helps neutralize excess stomach acid
– **Heartburn Relief**: Provides temporary relief from heartburn and acid reflux symptoms
– **Digestive Comfort**: Promotes overall digestive comfort

## What Are the Uses of Bismuth Citrate?

### Pharmaceutical Applications

In the pharmaceutical industry, bismuth citrate is used for:

– **Peptic Ulcer Treatment**: As part of combination therapy for treating gastric and duodenal ulcers
– **Gastritis Management**: For treating various forms of gastritis, including H. pylori-associated gastritis
– **GERD Treatment**: In formulations designed to manage gastroesophageal reflux disease
– **Dyspepsia Relief**: For treating functional dyspepsia and related symptoms

### Dietary Supplements

As a dietary supplement, bismuth citrate is used for:

– **Daily Digestive Support**: Maintaining gastrointestinal health
– **Traveler’s Diarrhea Prevention**: Managing diarrhea associated with travel
– **Nutritional Fortification**: As an ingredient in multivitamin and mineral formulations

### Research Applications

Bismuth citrate is also used in scientific research:

– **Pharmacological Studies**: Research on bismuth absorption, distribution, and metabolism
– **Microbiological Research**: Studies on bismuth’s antimicrobial properties
– **Clinical Trials**: Ongoing research into new therapeutic applications

## Safety and Side Effects

### Common Side Effects

Bismuth citrate is generally well-tolerated when used as directed. Most side effects are mild and temporary:

– **Darkening of Stool**: May cause harmless black discoloration of stool (common with bismuth compounds)
– **Darkening of Tongue**: Temporary discoloration of the tongue may occur
– **Constipation**: Some users may experience mild constipation
– **Nausea**: Rare instances of nausea or stomach discomfort

### Precautions

– **Pregnancy and Breastfeeding**: Consult a healthcare provider before use
– **Kidney Function**: Use with caution in individuals with impaired kidney function
– **Drug Interactions**: May interact with certain medications; consult a healthcare professional
– **Allergies**: Avoid if allergic to bismuth or citric acid

### Contraindications

– Should not be used by individuals with known hypersensitivity to bismuth compounds
– Not recommended for long-term high-dose use without medical supervision
– Avoid in severe kidney disease unless directed by a physician

### Overdose Information

Excessive consumption may lead to bismuth toxicity, characterized by:
– Neurological symptoms (tremors, confusion)
– Kidney dysfunction
– Gastrointestinal disturbances

Seek medical attention if overdose is suspected.

## Chemical Specifications

| Property | Value |
|———-|——-|
| **CAS Number** | 813-93-4 |
| **Molecular Formula** | C6H5BiO7 |
| **Molecular Weight** | 398.08 g/mol |
| **Appearance** | White to off-white crystalline powder |
| **Solubility** | Highly soluble in water |
| **pH (1% solution)** | 3.0-4.0 |
| **Storage** | Store in a cool, dry place away from moisture |
| **Shelf Life** | 2-3 years when properly stored |

## Frequently Asked Questions

### How long does it take for bismuth citrate to work?

Bismuth citrate typically begins working within 30 minutes to 2 hours after ingestion. For ulcer treatment, it may take several weeks of consistent use to achieve full therapeutic benefits.

### Can bismuth citrate be taken with food?

Yes, bismuth citrate can be taken with or without food. For best results in managing acid-related conditions, it is often recommended to take it 30 minutes before meals.

### Is bismuth citrate safe for long-term use?

Short-term use (up to 4-8 weeks) is generally considered safe for most adults. Long-term use should only be done under medical supervision to avoid potential accumulation of bismuth in the body.

### Does bismuth citrate interact with other medications?

Bismuth citrate may reduce the absorption of certain antibiotics (such as tetracyclines and fluoroquinolones). It is recommended to space doses by at least 2 hours. Always consult your healthcare provider about potential interactions.

### Is the dark stool caused by bismuth citrate dangerous?

No, the dark discoloration of stool (and sometimes tongue) is a harmless side effect of bismuth compounds. It will resolve after stopping the supplement.

## Why Choose Our Bismuth Citrate?

When sourcing bismuth citrate for pharmaceutical manufacturing, research, or formulation purposes, our company offers distinct advantages:

### Quality Assurance

– **High Purity**: Our bismuth citrate meets pharmaceutical-grade specifications (≥99% purity)
– **Quality Control**: Every batch undergoes rigorous testing including HPLC, ICP-MS for heavy metals, and microbial analysis
– **Certificate of Analysis (COA)**: Comprehensive COA provided with each shipment
– **FDA Registered Facility**: Manufactured in FDA-registered facilities following cGMP guidelines

### Competitive Pricing

– **Factory Direct**: No middleman, competitive factory pricing
– **Bulk Discounts**: Attractive discounts for large quantity orders
– **Flexible Packaging**: Available in various packaging options to meet your needs

### Reliable Supply Chain

– **Stable Inventory**: Regular stock availability for consistent supply
– **Fast Shipping**: Global delivery within 1-2 weeks
– **Technical Support**: Our team of chemists is available for technical assistance

### Customization Options

– **Custom Formulations**: We can provide specific concentrations and formulations
– **Technical Documentation**: Comprehensive DMF (Drug Master File) support available
– **OEM/ODM Services**: Private label and custom manufacturing options

## Related Products

If you’re interested in bismuth citrate, you may also find these related products useful:

– Bismuth Subnitrate – Another bismuth compound for pharmaceutical use
– Zinc Carnosine – Complementary gut health supplement
– Berberine – Natural compound for microbial balance
– Probiotics – For overall digestive health

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**Disclaimer**: This article is for informational purposes only and is not intended as medical advice. Always consult with a qualified healthcare professional before using any supplement or medication.