Coal tar

codes geen / geen

 

 

 

Formula

CAS

 

65996-92-1

 
CAS: Chemical Abstract Service Registry Number
 

Background

Coal tar is the by-product in the distillation of coal. It is used as a topical anti-eczematic and anti-psoriatic agent.
A study of 72 patients with psoriasis found that out of 13 patients who reported intolerance to coal tar were actually allergic (Burden et al.). The authors suggest patch-testing patients who are unable to tolerate coal tar preparations. 

 

Synonyms

Coal tar

 

Uses

Topical medications

 

Cross-Reactions

 

 

Unusual Reactions

Photoallergy
Phototoxicity
Persitant light reaction
Postinflammatory hyperpigmentation

 

References

1.

Sugai, T., Y. Takahashi, and T. Takagi, Pigmented cosmetic dermatitis and coal tar dyes. Contact Dermatitis, 1977. 3(5): p. 249-56.

2.

Goncalo, S., I. Sousa, and A. Moreno, Contact dermatitis to coal tar. Contact Dermatitis, 1984. 10(1): p. 57-8.

3.

McKee, R.H. and H.I. Maibach, The phototoxic and allergenic potential of EDS liquids. Contact Dermatitis, 1985. 13(2): p. 72-9.

4.

Riboldi, A., et al., Contact dermatitis to coal tar in psoriasis. Contact Dermatitis, 1986. 14(3): p. 187-8.

5.

Conde-Salazar, L., et al., Occupational coal tar dermatitis. Contact Dermatitis, 1987. 16(4): p. 231

6.

Illchyshyn, A., P.H. Cartwright, and A.G. Smith, Contact sensitivity to newsprint: a rare manifestation of coal tar allergy. Contact Dermatitis, 1987. 17(1): p. 52-3.

7.

Roesyanto, I.D., T.W. van den Akker, and T.W. van Joost, Wood tars allergy, cross-sensitization and coal tar. Contact Dermatitis, 1990. 22(2): p. 95-8.

8.

Burden, A.D., M. Stapleton, and M.H. Beck, Dithranol allergy: fact or fiction?. [Review]. Contact Dermatitis, 1992. 27(5): p. 291-3.

9.

Cusano, F., M. Capozzi, and G. Errico, Allergic contact dermatitis from coal tar. Contact Dermatitis, 1992. 27(1): p. 51-2.

10.

Burden, A.D., H. Muston, and M.H. Beck, Intolerance and contact allergy to tar and dithranol in psoriasis. Contact Dermatitis, 1994. 31(3): p. 185-6.

 

 

 

 

 

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