Borax: Benefits, Uses & Dosage

Most people know borax as a laundry booster. In Ayurveda the same mineral, called Tankana or Suhaga, has a long specialist history, and that gap between household product and medicine is exactly why it needs careful handling.

Borax is sodium borate, a naturally occurring mineral salt. The Bhavaprakash Nighantu describes it as an important mineral drug: a purifying agent (Shodhana) for mercury and other metals in mineral pharmacy (Rasa Shastra), a flux in metallurgy, and a medicine for cough, bronchitis and asthma because it is a powerful mucus-dissolving agent.

It is never used raw. Classical use is of purified borax, made by roasting until it puffs up, and the purified product is called Tankana Bhasma. One Sanskrit synonym, Rasashodhana, literally means "purifier of mercury."

Cough, Bronchitis and Asthma

The Bhavaprakash Nighantu lists purified borax as relieving cough and asthma (Kasa-Shwasa hara) and removing mucus (Shleshmahara). It describes it as a powerful mucus-dissolving agent in cough, bronchitis and other respiratory disorders.

The reasoning is its profile: pungent (Katu) in taste and post-digestive effect, light (Laghu) and sharp (Tikshna), with a heating potency (Ushna Virya). That combination cuts through heavy, sticky Kapha.

Digestion

Borax is listed as an appetizer (Deepana), meaning it kindles digestive fire.

Vaginal Infections

Sharangadhara Samhita (Parishishtam, Vaginal Pruritus) recommends Tankana-adi Churna, a borax-based powder, alongside Shivakari Vati for vaginal itching (Yoni Kandu), noting borax's antimicrobial and antifungal properties. That links it to yeast infections.

Menstrual Regulation and PCOS

The Bhavaprakash Nighantu also names borax as a menstrual regulator. Its narrow, Kapha-clearing role in PCOS is covered in Borax for PCOS.

Mineral Pharmacy

Much of borax's classical importance is behind the scenes, as a purifying agent and flux in preparing metallic medicines.

Borax is used only in purified form (Shodhita Tankana) or as Tankana Bhasma, supplied by a licensed Ayurvedic pharmacy. Doses are tiny, and internal use belongs under practitioner supervision.

Honey is the most common vehicle (anupana), since it supports the Kapha-cutting action. Internal borax is not taken continuously; courses are short, with breaks between them.

Borax is a mineral salt that is toxic at high doses. Its classical safety rests entirely on purification and on staying within very small doses.

• Never take raw borax. Industrial or laundry-grade borax is unsafe for internal use at any dose.
• Avoid it in pregnancy and while breastfeeding.
• Avoid it with kidney disease, active Pitta conditions such as acidity or burning, and any acute inflammatory state.
• Do not exceed classical doses or extend courses without practitioner supervision.

Our sources do not record specific drug interactions. Because of its heat and sharpness, do not combine it with other strongly heating herbs.

The comparisons that matter most for borax are about form and purity, since the same mineral can be a medicine or a hazard.

Pregnancy & Nursing

Avoid borax entirely during pregnancy and while breastfeeding.

Children

Our sources give no pediatric dose. Do not give borax to children, and keep household borax well out of reach.

Elderly

No specific guidance is recorded. Kidney disease is a contraindication, and kidney function often declines with age, so older adults should use it only after a practitioner has assessed them.

Athletes

There is no specific athletic use in our sources.