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The Protective Effect of Vitamin E on the Hemolysis Associated With Dapsone Treatment in Patients With Dermatitis Herpetiformis
Ronald Prussick, MD;
Mahmoud A. M. Ali, MD, PhD;
Donald Rosenthal, MD;
Gordon Guyatt, MD
Arch Dermatol. 1992;128(2):210-213.
Abstract
• Objective.—
This study looked at whether oral vitamin C and vitamin E would protect the erythrocyte from oxidant damage caused by dapsone in patients with dermatitis herpetiformis.
Design.—
Fifteen consecutive patients with dermatitis herpetiformis taking dapsone therapy received, in addition, 800 U/d of vitamin E for 4 weeks; then 1000 mg of vitamin C per day for 4 weeks, and, finally, combined vitamin E and vitamin C therapy for 4 weeks. Hemolysis indexes were assessed at baseline and after each 4-week period.
Results.—
Statistical analysis of the results suggests that oral administration of 800 units of vitamin E daily for 4 weeks confers partial protective effect against dapsone-induced hemolysis in patients with dermatitis herpetiformis.
Conclusion.—
Partial protection against dapsone-induced hemolysis by orally administered vitamin E, if confirmed as being clinically relevant by further trials, may allow clinicians to continue dapsone therapy orally in patients who develop significant hemolysis. Prophylactic vitamin E to minimize potential hemolysis at the initiation of dapsone therapy may also be appropriate.
(Arch Dermatol. 1992;128:210-213)
Author Affiliations
From the Department of Medicine, Division of Dermatology, University of Toronto, Ontario (Dr Prussick); Department of Pathology, St Joseph's Hospital, Hamilton, Ontario (Dr Ali); and Departments of Pathology (Dr Ali), Medicine, Division of Dermatology, Faculty of Health Sciences (Dr Rosenthal), and Medicine and Clinical Epidemiology and Biostatistics (Dr Guyatt), McMaster University, Hamilton, Ontario.
Footnotes
Accepted for publication September 25, 1991.
Reprints not available.
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