Coal Tar Preparations That Are Comparatively Ineffective. Aug. 15, 1905 The New York Times Archives See the article in its original context from August 15, 1905, Page 6 Buy Reprints View on ...

Then, patients are treated with a regimen of total-body coverage of a coal tar preparation for 4 to 5 hours daily for up to 6 weeks. 9 Ultraviolet B phototherapy treatments are prescribed because ...

The board sustained the protest and directed that the merchandise be assessed as coal tar preparations at 20 per cent., under Paragraph 19 of the act of October, 1890.

Combining this with a coal tar preparation can boost the chance of long-term remission, especially if maintenance treatments are used.