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J. G. DOWNING, M.D.; L. M. OHMART, A.M.; G. DICICCO, B.S.

Arch Derm Syphilol. 1944;49(6):421-422.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

Crude coal tar is probably one of the most efficient and useful substances employed in the practice of dermatology. Many dermatologists have insisted that their prescriptions for ointments and pastes containing coal tar be dispensed with a black or nearly black color. If this color was not obtained, these practitioners believed that the expected therapeutic results would not be obtained. As a result, by custom and tradition, it has been the practice of many dermatologists in prescribing these formulas to refer their patients to pharmacists who dispense ointments and pastes containing coal tar and zinc oxide with a black or nearly black color. The black color is obtained by mixing the zinc oxide with the coal tar before incorporating any of the base. This procedure is contrary to accepted pharmaceutic technic and usually results in a rather gritty preparation, since there is no opportunity for . . . [Full Text PDF of this Article]

Author Affiliations
BOSTON

From the Massachusetts College of Pharmacy, Department of Pharmacy.

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