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Treatment with Propionyl Erythromycin

JOHN B. HILL, M.D.; JOSEPH LINDNER, JR., M.D.; JAMES McB. GARVEY, JR., M.D.; JUDSON MILLHON, M.D.; MORTON HAMBURGER, M.D.

Arch Intern Med. 1961;108(4):578-582.

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

Erythromycin is known to be an effective form of oral therapy against many Grampositive organisms, including the pneumococcus. In recent years erythromycin has been altered in such a manner as to increase its rate and degree of absorption from the gastrointestinal tract and presumably to improve its clinical effectiveness. Stephens and Conine¹ have shown that esters of erythromycin whose fatty acid portion contains 5 or more carbon atoms are poorly absorbed but that the fatty acids containing 2 to 4 atoms give higher blood levels than the parent antibiotic. The highest blood levels are obtained with the proprionate ester. Griffith et al.² confirmed the presence of higher blood levels with propionyl erythromycin than with erythromycin base and also showed that the proprionate ester provides earlier and more prolonged "therapeutic" concentrations than does the base. Alteration of the molecule by the addition of the propionyl radical changes neither the . . . [Full Text PDF of this Article]

Author Affiliations
CINCINNATI

From the Infectious Disease Laboratory, Department of Medicine, University of Cincinnati College of Medicine and the Cincinnati General Hospital.

Footnotes
Submitted for publication Sept. 28, 1960.

This investigation was supported by a grant from Eli Lilly and Company. The propionyl erythromycin (Ilosone*) was supplied through the courtesy of Dr. R. S. Griffith.

The present Ilosone (erythromycin propionate lauryl sulfate) differs slightly from the Ilosone (propionyl erythromycin) used in this study.

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