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Table 3 Interaction between antibiotics and cinnamon bark oil or cinnamaldehyde against 30 clinically isolated MDR-PA strains

From: Efficacy of cinnamon bark oil and cinnamaldehyde on anti-multidrug resistant Pseudomonas aeruginosa and the synergistic effects in combination with other antimicrobial agents

Combinations

% isolates of bacteria in each interaction activity

SYN

IND

ANT

Colistin

Cinnamon bark oil

16.7

83.3

ND

Cinnamaldehyde

10

90

ND

Meropenem

Cinnamon bark oil

3.3

96.7

ND

Cinnamaldehyde

ND

100

ND

Imipenem

Cinnamon bark oil

ND

100

ND

Cinnamaldehyde

ND

100

ND

Doripenem

Cinnamon bark oil

ND

100

ND

Cinnamaldehyde

ND

100

ND

Ciprofloxacin

Cinnamon bark oil

ND

100

ND

Cinnamaldehyde

ND

100

ND

Piperacillin

Cinnamon bark oil

ND

100

ND

Cinnamaldehyde

ND

100

ND

Ceftazidime

Cinnamon bark oil

ND

100

ND

Cinnamaldehyde

ND

100

ND

  1. SYN synergy, IND indifferent, ANT antagonist, ND not detected