Lyla Lindsey
Boric acid is a chemical compound with a variety of applications, including in cosmetics, pharmaceuticals, and pesticides. While it is widely used in manufacturing, its sale and use as a food ingredient are banned in Australia. This is because boric acid is covered under Australian poisons legislation and is considered a toxic substance that poses a serious health risk if consumed. Animal studies have also indicated that boric acid and its salts are reproductive and developmental toxins, which may damage fertility and the unborn child. As such, boric acid has been classified as hazardous for reproductive and developmental toxicity in Australia.
| Characteristics | Values |
|---|---|
| Legitimate Applications | Manufacturing as detergents, water softeners, and weak antiseptics |
| Fertilizers, pesticides, and pharmaceuticals | |
| Food preparation as a firming agent, meat rub, preservative, or tenderizer | |
| Banned Uses | As a food or food ingredient in New South Wales |
| Vaginal insertion | |
| Toxicity | Low to moderate effects in humans with normal use |
| May cause minor adverse effects | |
| Potential to cause reproductive and developmental effects | |
| Classified as hazardous for reproductive and developmental toxicity | |
| May damage fertility and the unborn child |
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What You'll Learn
Boric acid is a toxic substance
Boric acid is a chemical compound with a variety of industrial and domestic uses. It is commonly used in manufacturing as a component of detergents, water softeners, and weak antiseptics. Additionally, it finds applications in cosmetics, therapeutic goods, and personal care products, often as a buffering or viscosity-controlling agent. In medicine, boric acid is an ingredient in eye drops, antifungal treatments, contact lens solutions, and even vitamins.
However, the potential toxicity of boric acid cannot be overlooked. Animal studies have indicated that boric acid and its salts can cause reproductive and developmental issues. The testes and developing fetus have been identified as particularly sensitive targets of boron toxicity. As a result, boric acid is classified as a hazardous substance for reproductive and developmental toxicity in Australia, with warnings that it may damage fertility and the unborn child.
In recognition of its toxic potential, boric acid is listed in the Therapeutic Goods (Permissible Ingredients) Determination, and its use is regulated by the National Industrial Chemicals Notification and Assessment Scheme (NICNAS). The Poisons Standard, maintained by the Therapeutic Goods Administration (TGA), also includes boric acid and its salts, with specific warnings and restrictions on their use. These regulations aim to ensure the safe use of boric acid and related products while preventing unintended exposure, particularly in children and during pregnancy.
While boric acid has useful applications, its potential toxicity, especially regarding reproductive and developmental health, warrants caution. The regulatory measures in Australia reflect the need to balance the benefits of boric acid in various industries against the potential risks to human health.
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It can cause reproductive and developmental issues
Boric acid and its salts are considered toxic and pose an unacceptable risk to human health. They are classified as hazardous for reproductive and developmental toxicity. The developing foetus and testes have been identified as the most sensitive targets of boron toxicity in animal studies.
Boric acid is listed in the Therapeutic Goods (Permissible Ingredients) Determination No. 3 of 2018 and No. 4 of 2017 as hazardous for reproductive and developmental toxicity. It is given a Category 1B classification, which means it "may damage fertility [and] may damage the unborn child".
Boric acid is also included in Schedule 5 and Appendix E, Part 2 of the Poisons Standard. The National Industrial Chemicals Notification and Assessment Scheme (NICNAS) has applied to amend the current entry for boric acid in Schedule 5 to include its salts. This is because boric acid and its salts are considered reproductive and developmental toxins, with animal data indicating toxicity.
Boric acid and its salts are used in a range of products, including therapeutic goods, cosmetics, and other domestic and industrial products. They are also used in veterinary medicines, pesticides, and swimming pool products. Despite their toxicity, they are considered to have low to moderate effects in humans with normal use. However, the data for oral, dermal, and inhalation toxicity in humans is limited or non-existent.
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It is not permitted for vaginal insertion
Boric acid is a medication that helps promote a balance of acid in the vagina. It is used to treat vaginal yeast infections, commonly known as thrush, by relieving symptoms like itching and burning. It is also used to treat bacterial vaginosis (BV), an infection caused by an imbalance in the bacteria in the vagina.
Despite its medicinal properties, boric acid is not permitted for vaginal insertion in Australia. This is because it is classified as a poisonous pesticide. In 1988, 13 children in Malaysia died from food poisoning after consuming a dish containing boric acid. Its toxicity has also been demonstrated in studies on animals and humans, where it has been linked to reproductive issues and the growth of cancer cells.
In addition, boric acid kills all bacteria in the vagina, including the good bacteria called lactobacilli, which help to maintain a healthy vaginal environment and prevent odour-causing bacteria. The destruction of the vaginal microbial population can lead to recurrent BV, with studies showing that approximately 50% of women who use boric acid experience recurrent infections.
While boric acid is not specifically banned for vaginal insertion in Australia, it falls under the catch-all provision of the Poisons Act, which states that any substance with a concentration higher than 5% and not listed for a specific use must be prescribed by a registered medical doctor. As such, boric acid suppositories should be prescribed by a doctor and compounded by a registered pharmacist at a licensed chemist.
It is important to note that the use of boric acid for vaginal infections is controversial, with some sources recommending against it due to its potential health risks. However, it is widely available over the counter in other countries and is considered safe to use vaginally by some healthcare professionals.
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It is used in cosmetics and domestic products
While boric acid is used in cosmetics and domestic products, it is also listed as a hazardous substance for reproductive and developmental toxicity. It is classified as Category 1B, which means that it may damage fertility and the unborn child. This classification is based on data from animal studies that indicate the potential for boron toxicity in the testes and developing fetus. As a result, there are international restrictions on the use of boric acid and its salts.
In Australia, boric acid and its salts are captured by the Schedule 4 entry for boron in the Poisons Standard. This means that there are specific regulations for its use in products intended for dermal use, paediatric or antifungal use, and products containing certain concentrations of boron. For example, products containing more than 1.5% of free soluble borates must be labelled with a warning stating that they should not be used on peeling or irritated skin.
Despite the potential risks associated with boric acid, it is still used in a variety of cosmetic and domestic products in Australia. These include eye drops, antifungal treatments, contact lens solutions, detergents, and vitamins. It is also used in personal care products, such as buffering or viscosity-controlling agents, and in domestic detergent products as enzyme stabilizers.
In addition to its use in cosmetics and domestic products, boric acid is also used in therapeutic goods, veterinary medicines, and pesticide products. It is an ingredient in swimming pool bactericides and algaecides and is found in some Australian therapeutic products, including eye drops, antifungal treatments, and contact lens solutions.
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It is a prescription medicine
Boric acid is a chemical with a wide range of applications, from manufacturing to medical use. It is used in the production of detergents, water softeners, antiseptics, fertilisers, and pesticides. In addition, it is used in some pharmaceuticals, cosmetics, and therapeutic products such as eye drops, antifungal treatments, and contact lens solutions.
In Australia, boric acid is considered a prescription medicine due to its potential health risks. The Therapeutic Goods Administration (TGA) has classified boric acid as a hazardous substance for reproductive and developmental toxicity. Animal studies have shown that boric acid and its salts can cause adverse effects on the testes and developing fetus, leading to potential fertility and developmental issues. As a result, the TGA has recommended that boron, including boric acid and borax, be classified as a prescription medicine.
The classification of boric acid as a prescription medicine means that it cannot be purchased over the counter and must be obtained through a prescription from a medical professional. This regulation helps ensure that boric acid is used safely and under the guidance of a doctor or other authorised healthcare provider.
It's important to note that the regulation of boric acid may vary in different countries, and there may be regions where it is more readily available. Additionally, there are specific scenarios where boron is excluded from being a prescription medicine in Australia. For example, boron is not considered a prescription medicine when used in internal medicines containing 6 mg or less per recommended daily dose.
While boric acid has legitimate and beneficial uses, particularly in the medical field, its potential health risks, especially regarding reproductive and developmental toxicity, have led to its classification as a prescription medicine in Australia. This classification helps ensure that its use is carefully monitored and prescribed by medical professionals to balance its benefits against potential risks.
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Frequently asked questions
Boric acid is not banned in Australia. It is listed in the Therapeutic Goods (Permissible Ingredients) Determination No. 3 of 2018 and is used in various cosmetic and therapeutic products. However, it is classified as hazardous for reproductive and developmental toxicity and is therefore captured by the Schedule 4 entry for boron in the Poisons Standard.
Boric acid is used in a range of therapeutic, cosmetic, and domestic products, including eye drops, antifungal treatments, contact lens solutions, detergents, and vitamins. It is also used in pesticides, fertilisers, and some pharmaceuticals.
While boric acid is considered to have low to moderate effects in humans with normal use, it can cause minor adverse effects. It is classified as hazardous for reproductive and developmental toxicity and may damage fertility and the unborn child.
Products containing boric acid should not be used on children under 3 years of age or on peeling or irritated skin.
