Phos•Flur Gel | Phos-Flur [Colgate Oral Pharmaceuticals, Inc.] | BioPortfolio

13:09 EST 27th January 2019 | BioPortfolio

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1.1% Sodium Fluoride andAcidulated Phosphate Gel


Phos-Flur® Gel contains 0.5% fluoride ion (F-) from 1.1% sodium fluoride in an aqueous gel containing 0.1 molar phosphate, pH 5.1. For daily self-topical use as a dental caries preventative in adults and pediatric patients age 6 years and over. This prescription product is not a dentifrice.

Sodium Fluoride 1.1% (w/v).

butylparaben, disodium EDTA, ethylparaben, flavor, glycerin, methylparaben, PEG-12, phosphoric acid, poloxamer 407, polysorbate 20, propylene glycol, propyl paraben, sodium benzoate, sodium phosphate, sodium saccharin, water, xanthan gum, D&C yellow no. 10, FD&C blue no.1

Frequent topical applications to the teeth with preparations having a relatively high fluoride content increase tooth resistance to acid dissolution and enhance penetration of the fluoride ion into tooth enamel.

A dental caries preventive, for once daily self-applied topical use. It is well established that 1.1% sodium fluoride in an acidulated gel is safe and extraordinarily effective as a caries preventive in orthodontic patients when applied frequently with mouthpiece applicators. Phos-Flur® Gel in a squeeze tube is a particularly convenient dosage form which permits the application of a thin ribbon of gel onto a toothbrush as well as a mouthpiece tray.

Do not use in pediatric patients under age 6 years unless recommended by a dentist or physician.

Prolonged daily ingestion may result in various degrees of dental fluorosis in pediatric patients under age 6 years, especially in the areas with high fluoride concentration in drinking water. Use in pediatric patients under age 6 years requires special supervision to prevent repeated swallowing of gel. Use cautiously in patients with porcelain or ceramic restorations as per PRECAUTIONS below. Read directions carefully before using. Keep out of reach of infants and children.

Laboratory tests indicate that repeated use of acidulated phosphate fluoride topical gel may cause dulling of porcelain and ceramic restorations unless protected from contact. Do not place in porcelain or glass containers. Not for systemic treatment. DO NOT SWALLOW.

In a study conducted in rodents, no carcinogenesis was found in male and female mice and female rats treated with fluoride at dose levels ranging from 4.1 to 9.1 mg/kg of body weight. Equivocal evidence of carcinogenesis was reported in male rats treated with 2.5 and 4.1 mg/kg of body weight. In a second study, no carcinogenesis was observed in rats, males or females, treated with fluoride up to 11.3 mg/kg of body weight. Epidemiological data provide no credible evidence for an association between fluoride, either naturally occurring or added to drinking water, and risk of human cancer.

Fluoride ion is not mutagenic in standard bacterial systems. It has been shown that fluoride ion has potential to induce chromosome aberrations in cultured human and rodent cells at doses much higher than those to which humans are exposed. In vivo data are conflicting. Some studies report chromosome damage in rodents, while other studies using similar protocols report negative results.

Potential adverse reproductive effects of fluoride exposure in humans has not been adequately evaluated. Adverse effects on reproduction were reported for rats, mice, fox, and cattle exposed to 100 ppm or greater concentrations of fluoride in their diet or drinking water. Other studies conducted in rats demonstrated that lower concentrations of fluoride (5 mg/kg of body weight) did not result in impaired fertility and reproductive capabilities.

It has been shown that fluoride crosses the placenta of rats, but only 0.01% of the amount administered is incorporated in fetal tissue. Animal studies (rats, mice, rabbits) have shown that fluoride is not a teratogen. Maternal exposure to 12.2 mg fluoride/kg of body weight (rats) or 13.1 mg/kg of body weight (rabbits) did not affect the litter size or fetal weight and did not increase the frequency of skeletal or visceral malformations.

There are no adequate and well-controlled studies in pregnant women. However, epidemiological studies conducted in areas with high levels of naturally fluoridated water showed no increase in birth defects. Heavy exposure to fluoride during in utero development may result in skeletal fluorosis which becomes evident in childhood.

It is not known if fluoride is excreted in human milk. However, many drugs are excreted in milk, and caution should be exercised when products containing fluoride are administered to a nursing woman. Reduced milk production was reported in farm-raised fox when the animals were fed a diet containing a high concentration of fluoride (98-137 mg/kg of body weight). No adverse effects on parturition, lactation, or offspring were seen in rats administered fluoride up to 5 mg/kg of body weight.

The use of Phos-Flur® Gel in pediatric age groups 6 to 16 years as a caries preventive is supported by pioneering clinical studies with 1.1% sodium fluoride gels in mouth trays in students age 11-14 years conducted by Englander, et al. Safety and effectiveness in pediatric patients below the age of 6 years have not been established. Please refer to the CONTRAINDICATIONS and WARNINGS sections.

Of the total number of subjects in clinical studies of 1.1% (w/v) sodium fluoride, 15 percent were 65 and over, while 1 percent were 75 and over. No overall differences in safety or effectiveness were observed between these subjects and younger subjects, and other reported clinical experience has not identified differences in responses between the elderly and younger patients, but greater sensitivity of some older individuals cannot be ruled out. This drug is known to be substantially excreted by the kidney, and the risk of toxic reactions to this drug may be greater in patients with impaired renal function. Because elderly patients are more likely to have decreased renal function, care should be taken in dose selection, and it may be useful to monitor renal function.

Contact with abraded or sensitive gingival tissue may produce discomfort. Allergic reactions and other idiosyncrasies have been rarely reported.

Accidental ingestion of large amounts of fluoride may result in acute burning in the mouth and sore tongue. Nausea, vomiting, and diarrhea may occur soon after ingestion (within 30 minutes) and are accompanied by salivation, hematemesis, and epigastric cramping abdominal pain. These symptoms may persist for 24 hours. If less than 5 mg fluoride/kg body weight (i.e., less than 2.3 mg fluoride/lb body weight) have been ingested, give calcium (e.g., milk) orally to relieve gastrointestinal symptoms and observe for a few hours. If more than 5 mg fluoride/kg body weight (i.e., more than 2.3 mg fluoride/lb body weight) have been ingested, induce vomiting, give orally soluble calcium (e.g., milk, 5% calcium gluconate or calcium lactate solution) and immediately seek medical assistance. For accidental ingestion of more than 15 mg fluoride/kg of body weight (i.e., more than 6.9 mg fluoride/lb body weight), induce vomiting and admit immediately to a hospital facility.

A treatment dose (a thin ribbon) of Phos-Flur® Gel contains approximately 1.31 mg fluoride. One 1.8 oz. net wt. tube contains approximately 247 mg fluoride.

Follow these instructions unless otherwise instructed by your dental professional:

1.8 oz. (56 g) net wt. plastic tubes.Mint: NDC 0126-0131-66

Store at controlled room temperature, 68-77°F (20-25°C).

Colgate Oral Pharmaceuticals, Inc. a subsidiary of Colgate-Palmolive CompanyNew York, NY 10022 U.S.A.


P10001149Rev. Apr. 2009


Phos•Flur Gel


1.1% Sodium Fluoride andAcidulated Phosphate Gel

Helps Prevent Orthodontic Decalcification


NDC 0126-0131-66

NET WT. 1.8 OZ (51 g)


Colgate Oral Pharmaceuticals, Inc.

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