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Table 4 In vitro activity of QdNOs in combination with various antibacterials against Mycoplasma gallisepticum

From: In vitro antimicrobial activities of animal-used quinoxaline 1,4-di-N-oxides against mycobacteria, mycoplasma and fungi

Drug combination

M. gallisepticum PG31

M. gallisepticum BG44T

FICA + FICB

FIC

Combined effect

FICA + FICB

FIC

Combined effect

CYA + Tetracycline

0.25 + 0.5

0.75

additive

0.25 + 0.5

0.75

additive

CYA + Doxycycline

0.5 + 0.5

1

additive

0.5 + 0.5

1

additive

CYA + Lincomycin

0.5 + 0.25

0.75

additive

0.25 + 1

1.25

indifferent

CYA + Clindamycin

0.5 + 0.5

1

additive

0.25 + 1

1.25

indifferent

CYA + Danofloxacin

0.5 + 1

1.5

indifferent

0.25 + 1

1.25

indifferent

CYA + Enrofloxacin

0.25 + 1

1.25

indifferent

0.25 + 1

1.25

indifferent

CYA + Tylosin

0.5 + 0.5

1

additive

1 + 0.5

1.5

indifferent

CYA + Kitasamycin

0.25 + 1

1.25

indifferent

0.5 + 0.5

1

additive

QCT + Tetracycline

0.25 + 0.5

0.75

additive

0.25 + 0.5

0.75

additive

QCT + Doxycycline

0.5 + 0.5

1

additive

0.5 + 0.5

1

additive

QCT + Lincomycin

0.5 + 0.5

1

additive

0.25 + 1

1.25

indifferent

QCT + Clindamycin

0.25 + 1

1.25

indifferent

0.25 + 1

1.25

indifferent

QCT + Danofloxacin

0.25 + 1

1.25

indifferent

0.5 + 0.5

1

additive

QCT + Enrofloxacin

0.25 + 1

1.25

indifferent

0.25 + 1

1.25

indifferent

QCT + Tylosin

0.5 + 0.5

1

additive

0.25 + 1

1.25

indifferent

QCT + Kitasamycin

0.25 + 1

1.25

indifferent

0.25 + 1

1.25

indifferent

MEQ + Tetracycline

0.5 + 0.5

1

additive

0.25 + 0.5

0.75

additive

MEQ + Doxycycline

0.5 + 0.5

1

additive

0.5 + 0.5

1

additive

MEQ + Lincomycin

0.25 + 1

1.25

indifferent

0.25 + 1

1.25

indifferent

MEQ + Clindamycin

0.5 + 0.5

1

additive

0.25 + 1

1.25

indifferent

MEQ + Danofloxacin

0.5 + 1

1.5

indifferent

0.25 + 1

1.25

indifferent

MEQ + Enrofloxacin

0.25 + 1

1.25

indifferent

0.25 + 1

1.25

indifferent

MEQ + Tylosin

0.5 + 0.5

1

additive

0.25 + 1

1.25

indifferent

MEQ + Kitasamycin

0.25 + 1

1.25

indifferent

0.5 + 0.5

1

additive