Bismuth subgallate

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Bismuth subgallate

Bismuth subgallate is a yellow, odorless powder that is commonly used as an internal deodorant. It is a compound with the chemical formula C7H5BiO6.

Chemical Properties

Bismuth subgallate is a complex of trivalent bismuth and gallic acid. It is a yellow powder that is insoluble in water but soluble in mineral acids. It has astringent and mild antiseptic properties.

Uses

Bismuth subgallate is used in the treatment of hemorrhoids and other minor skin irritations. It is also used as an internal deodorant to treat malodor from flatulence and stools. In addition, it is used in wound healing products due to its astringent and antiseptic properties.

Pharmacology

When applied topically, bismuth subgallate acts as an astringent by coagulating protein in skin cells and tissues, thereby reducing discharge and relieving irritation. It also has weak antiseptic effects. When taken orally, it acts as an internal deodorant by reducing the smell of flatulence and stools.

Safety

Bismuth subgallate is generally considered safe for topical and oral use. However, it should not be used in individuals with a known allergy to bismuth. Long-term use of bismuth subgallate can lead to bismuth toxicity, which can cause symptoms such as headache, confusion, and poor coordination.

See Also

• Bismuth
• Gallic acid
• Hemorrhoids
• Bismuth toxicity