Sustained release preparation comprising one or more antibiotics and polymers

摘要

Incorporation of an aminoglycoside, lincosamide, tetracycline, quinolone or beta -lactam antibiotic in a homogeneous mixture of a hydrophobic polymethacrylate, polyacrylate and/or poly(methacrylate-co-acrylate) polymer and a hydrophilic polyether polymer provides continuous release of the antibiotic. An antibiotic-polymer composite comprises a suspension of one or more aminoglycoside, lincosamide, tetracycline, quinolone or beta -lactam antibiotics and optionally one or more organic additives in a homogeneous polymer mixture of one or more hydrophobic polymethacrylate, polyacrylate and/or poly(methacrylate-co-acrylate) polymers and one or more hydrophilic polyether polymers. The aminoglycoside, lincosamide and tetracycline antibiotics have poor water-solubility or may be readily soluble in water, the quinolone antibiotics have a poor solubility in water and the beta -lactam antibiotics may be readily soluble in water.