Abstract
IN 1958 a serendipitous observation led to the discovery that oral administration of small doses of neomycin reduced the concentration of plasma cholesterol in man.1 Neomycin is a nonabsorbable aminoglycoside antibiotic with a broad spectrum of activity. Since intramuscular administration of small absorbed amounts (2 My colleagues and I have studied the effects of 22 additional antibacterial drugs on plasma cholesterol levels in man; kanamycin, chlortetracycline, paromomycin, chloramphenicol and para-aminosalicylic acid . . .