The effect of calcium on the antibacterial activity of gentamicin in urine

Papapetropoulou, M.; Giamarellou, H.

Drugs under Experimental and Clinical Research 11(11): 797-799

1985


ISSN/ISBN: 0378-6501
PMID: 3939217
Document Number: 253481
The influence of various concentrations of calcium on the antibacterial activity of gentamicin in urine on 10 strains of Escherichia and 10 strains of Pseudomonas aeruginosa was studied in vitro. It was found that calcium has a strong antagonistic effect on gentamicin activity, particularly with regard to P. aeruginosa. This effect is greatly reduced when gentamicin concentrations are increased to levels higher than those obtained in urine under conventional treatment schedules.

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