Chemical and Pharmaceutical Bulletin
Online ISSN : 1347-5223
Print ISSN : 0009-2363
ISSN-L : 0009-2363
A NOVEL SKELETAL DRUG DELIVERY SYSTEM FOR ANTI-BACTERIAL DRUGS USING SELF-SETTING HYDROXYAPATITE CEMENT
Makoto OTSUKAYoshihisa MATSUDADuncan YUJoseph WONGJeffery L. FOXWilliam I. HIGUCHI
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JOURNAL FREE ACCESS

1990 Volume 38 Issue 12 Pages 3500-3502

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Abstract

To solve the problem of delivering drugs to skeletal tissue at high enough local concentrations for desirable therapeutic effects, we report a novel approach using a self-setting hydroxyapatite cement, with cephalexin and norfloxacin as model drugs. After setting, the cement was transformed into hydroxyapatite with affinity for hard bone tissue. Continuous in-vitro drug release profiles from loaded cement pellets (0.9-4.8% by weight) in phosphate buffer at pH 7.4 and 37°C followed the Higuchi equation.

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© The Pharmaceutical Society of Japan
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