Potassium Nitrate
Active ingredient
Sold as sensodyne · Trader Joes · Pronamel Repair Whitening · Sodium Fluoride 5000 ppm… · HAPEE EXPLOSIVE MENTHOL…
- Drug class
- -
- Availability
- Prescription and OTC
- Routes
- Dental, Oral
- Markets covered
- 2
- Products on record
- 10
- FDA reports (12 mo)
- 55
Overview
Plain-language summary, compiled from the cited regulatory records
Potassium nitrate is used in toothpaste formulations as a dental caries preventive and for managing tooth sensitivity [1]. It is approved for twice-daily topical use in adults and children 12 years of age and older. When used as directed, it helps reduce pain from cold, heat, acid, sweets, or contact [1].
This active ingredient is available under various brand names, including Sensodyne and Pronamel Repair Whitening [1]. In the past 12 months, there have been 55 adverse event reports associated with products containing potassium nitrate [2]. Commonly reported adverse events include fatigue, arthralgia, diarrhea, nausea, and reports of the drug being ineffective [2].
This is not medical advice. Consult a qualified healthcare professional.
Regulatory status by market
| Market | Regulator | Products | Last revision |
|---|---|---|---|
| US United States | FDA | 9 | May 22, 2026 |
| GB United Kingdom | MHRA | 1 | January 9, 2026 |
USUnited States· FDA
9 products
Uses
INDICATIONS AND USAGE:
A dental caries preventive and sensitive toothpaste; for twice daily self-applied topical use,following by rinsing, helps reduce the painful sensitivity of the teeth to cold, heat, acid, sweets or contact in adults patients and children 12 years of age and older.
1% sodium fluoride is safe and extraordinarily effective as a caries preventive when applied frequently with mouthpiece applicators. 1% sodium fluoride toothpaste with 5% potassium nitrate in a squeeze-tube is easily applied onto a toothbrush.
This prescription toothpaste should be used twice daily in place of your regular toothpaste, unless otherwise instructed by your dental professional. May be used whether or not drinking water is fluoridated, since topical fluoride cannot produce fluorosis.
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How to take
DOSAGE AND ADMINISTRATION:
Follow these instructions unless otherwise instructed by your dental professional: Adults and pediatric patients 12 years of age or older, apply at least a 1 inch strip of Sodium Fluoride 5000 ppm Sensitive onto a soft bristle toothbrush.
Brush teeth thoroughly for at least 1 minute, expectorate, and rinse mouth thoroughly. Use twice daily, (morning and evening) or as recommended by dentist or physician. Make sure to brush all sensitive areas of the teeth. Children under 12 years of age:consultant a dentist or physician.
This is not medical advice. Consult a qualified healthcare professional.
Most-reported reactions to the US regulator (12 mo to June 4, 2026): 55 reports total. [3]
- Fatigue 7
- Arthralgia 5
- Diarrhoea 5
- Drug Ineffective 5
- Nausea 5
- Back Pain 4
- Dry Eye 4
- Headache 4
- Nasopharyngitis 4
- Blood Pressure Increased 3
- Cough 3
- Covid-19 3
Side effects & warnings
ADVERSE REACTIONS:
Allergic reactions and other idiosyncrasies have been rarely reported. To report SUSPECTED ADVERSE REACTIONS, contact Sheffield Pharmaceuticals, LLC. gov/medwatch.
WARNINGS:
Not for systemic treatment- Do not Swallow. Keep out of the reach of children. Children under 12 years of age, consult a dentist or physician.
Note:
Sensitive teeth may indicate a serious problem that may need prompt care by a dentist. See your dentist if the problem persists or worsens. Do not use this product longer than 4 weeks unless recommended by a dentist or physician.
This is not medical advice. Consult a qualified healthcare professional.
Who should not take it
CONTRAINDICATIONS:
Do not use in pediatric patients under age 12 years unless recommended by a dentist or physician.
This is not medical advice. Consult a qualified healthcare professional.
GBUnited Kingdom· MHRA
1 product
Uses
Used for removing granulation tissue, warts (including verrucae), for cautery and as a caustic.
How to take
The tip is moistened with suitably clean water and applied topically to the area to be treated. Surrounding areas of healthy skin, etc. should be protected from the caustic/staining action of silver nitrate by a suitable barrier such as petroleum jelly, where necessary and practicable.
This is not medical advice. Consult a qualified healthcare professional.
Side effects & warnings
Skin and subcutaneous tissue disorders Chronic application of silver nitrate or its products to conjunctive, mucous membranes or open wounds may lead to a condition known as argyria, an accumulation of silver metal or compounds in the connective tissues which gives rise to a local or general bluish-black appearance.
This is thought to be a completely harmless cosmetic effect only, but it may persist indefinitely or disappear only very slowly. Absorption of nitrate following reduction of nitrate by certain bacteria in some wounds may cause methaemoglobinaemia.
There is a risk of electrolyte disturbances. Cases of either argyria or methaemoglobinaemia are very rare (<1/10,000) and are likely to arise only under exceptional circumstances of prolonged use of large quantities of sliver nitrate.
Paediatric population No data are available Reporting of suspected adverse reactions Reporting suspected adverse reactions after authorisation of the medicinal product is important. It allows continued monitoring of the benefit/risk balance of the medicinal product.
uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store
For single patient use only. Must be used under medical supervision. The instruction must be followed in view of the caustic/staining nature of the product. Paediatric population No data are available
This is not medical advice. Consult a qualified healthcare professional.
Who should not take it
Hypersensitivity to the silver nitrate or to the excipient potassium nitrate. Not for use near the eyes or other sensitive areas of the body, due to the corrosive / staining action of the product. Should not be used for genital warts.
This is not medical advice. Consult a qualified healthcare professional.
Sources & citations
- [1]FDA DailyMed · 02f4cf0b-188c-45… · revised April 1, 2020 [PDF]
- [2]MHRA (UK) · PL042860005 · revised January 9, 2026
- [3]OpenFDA adverse-event reports (US), 12 months ending June 4, 2026.
Information on this page is compiled from public regulatory records. Drugvu is not affiliated with any regulator or pharmaceutical manufacturer. This is not medical advice. Always consult a qualified healthcare professional.