"Scientists at the National Institutes of Health report they have discovered in mouse studies that a small molecule released in the spinal cord triggers a process that is later experienced in the brain as the sensation of itch.
General: Naftin® (naftifine) Gel, 1% is for external use only. If irritation or sensitivity develops with the use of Naftin® (naftifine) Gel, 1%, treatment should be discontinued and appropriate therapy instituted. Diagnosis of the disease should be confirmed either by direct microscopic examination of a mounting of infected tissue in a solution of potassium hydroxide or by culture on an appropriate medium.
Carcinogenesis, mutagenesis, impairment of fertility: Long-term studies to evaluate the carcinogenic potential of Naftin® (naftifine) Gel, 1% have not been performed. In vitro and animal studies have not demonstrated any mutagenic effect or effect on fertility.
Pregnancy: Teratogenic Effects: Pregnancy Category B: Reproduction studies have been performed in rats and rabbits (via oral administration) at doses 150 times or more than the topical human dose and have revealed no evidence of impaired fertility or harm to the fetus due to naftifine. There are, however, no adequate and well-controlled studies in pregnant women. Because animal reproduction studies are not always predictive of human response, this drug should be used during pregnancy only if clearly needed.
Nursing mothers: It is not known whether this drug is excreted in human milk. Because many drugs are excreted in human milk, caution should be exercised when Naftin® (naftifine) Gel, 1% is administered to a nursing woman.
Pediatric use: Safety and effectiveness in pediatric patients have not been established.
Last reviewed on RxList: 6/11/2008
This monograph has been modified to include the generic and brand name in many instances.
Additional Naftin Gel Information
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