The present invention relates to an antibiotic(s)-polymer combination, which under physiological conditions guarantees the continuous release of antibiotics over a period of several days and can be used in human and veterinary medicine. The invented antibiotic(s)-polymer combination is wherein in a homogeneous polymer mixture, consisting of one or more hydrophobic polymers from the groups of poly(methacrylic acid esters), the poly(acrylic acid esters) and the poly(methacrylic acid ester-co-acrylic acid esters) and one or more hydrophilic polymers from the group of polyethers, one or more slightly water-soluble antibiotics from the groups of aminoglycoside antibiotics, the lincosamide antibiotics, the tetracycline antibiotics and quinolone antibiotics, possibly an easily water-soluble antibiotic from the groups of aminoglycoside antibiotics, the lincosamide antibiotics and the tetracycline antibiotics, and possibly one or more organic adjuvants are suspended, and that this suspension forms a composite.