In vitro anti-fungal activity of the econazole-ornidazole combination (1:10 ratio)
Piccolomini, R.; Arpini, A.; Cellini, L.; Pagano, M.
Bollettino dell'Istituto Sieroterapico Milanese 62(3): 257-261
1983
ISSN/ISBN: 0021-2547 PMID: 6639779 Document Number: 199985
The antifungal activity of Econazole-Ornidazole combination (ratio 1:10) has been evaluated against 90 strains of Candida spp. recently isolated from a clinical environment. Minimal Inhibitory Concentrations (MICs) has been determined by a dilution broth method in test tube with Mycophil Broth (B.B.L) at pH 7.00 and drug concentrations ranging from 800 micrograms/ml to 0.2 microgram/ml. By the same technics it has been determined the pH influence of growth medium, human serum and fungal inoculum on the activity of the association towards the three strains of Candida spp.: C. albicans, C. krusei and C. tropicalis. The obtained data have shown that the Econazole-Ornidazole combination actuates a sure synergic effect towards the tested Candida strains. Such synergism is met at pH 8.00. The plasma proteins influence negatively the antifungal activity of the association proportionally to the increase of the concentration. The same thing happens with the inoculum of yeast. However, this decrease of activity of the association is always smaller than the one found in the compounds alone.