coal tar (k l)n. A viscous black liquid containing numerous organic compounds that is obtained by the destructive distillation of coal and that has many uses including as raw material for many dyes, drugs, and paints. |
coal tar,
a topical drug for treating eczema.
indications It is prescribed in the treatment of chronic skin conditions, such as dandruff, seborrheal dermatitis, and psoriasis.
contraindication Known hypersensitivity to this drug prohibits its use.
adverse effects Among the most serious adverse effects are skin irritation and local hypersensitivity reactions.
coal tar,
n an extract of coal used in combination with other compounds for the treatment of chronic skin diseases, such as eczema and psoriasis. Also a derivative of tobacco smoke that may act as an irritant and carcinogen.
coal tar
a by-product obtained in destructive distillation of bituminous coal or wood; useful for its keratolytic, keratoplastic and antiseborrheic effects in ointments and shampoos for the treatment of skin disease.
coal tar
Therapeutics A blackish, semisolid byproduct of the destructive distillation of bituminous coal, which contains benzene, naphthalene, phenols, and other organic compounds; CT is used to treat psoriasis, and may induce clearance of
psoriatic plaques Cons Unpleasant odor, carcinogenic; CT is usually combined with UVB light. See Psoriasis.
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