Coal tar is an antipruritic and keratoplastic. It is used in eczema, psoriasis and other skin conditions. Tar acids have also been shown to have disinfectant properties. Coal tar may be used alone, or as part of a more extensive treatment regimen.
Not applicable.
In animal studies coal tar has been shown to increase the incidence of epidermal carcinomas and self-limiting keratoacanthomas.
While the ingredients of coal tar have been shown to express genotoxic properties, epidemiological studies with patients have been shown to be inconclusive concerning the potential carcinogenic risks of coal tar products in human long term treatment. Nevertheless the possible risk of prolonged treatment should be taken into account when considering the usage of the product.
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