The In Vitro Antimicrobial Effects of Lavandula angustifolia Essential Oil in Combination with Conventional Antimicrobial Agents

Table 3

Mean MIC values in μg/mL () for the antimicrobial agents selected for combination analysis.

Antimicrobial agent	C. albicans		S. aureus		P. aeruginosa
	ATCC 10231		ATCC 6538		ATCC 27858
	Value obtained	Break point	Value obtained	Break point range	Value obtained	Break point range
Chloramphenicol	0.63	<4.00	0.31	0.10–15.60	0.31	0.06–32.00
Ciprofloxacin	NA^†	NA	0.11	0.12–0.50	0.04	<1.00–2.50
Fusidic acid	NA	NA	0.63	0.10–>32.00	0.31	≤1.00
Nystatin	0.16	≤4.00	NA	NA	NA	NA

point ranges for commercial antimicrobials as determined by the KnowledgeBase antimicrobial index, CLSI guidelines, and EUCAST antimicrobial index; ^†NA: not applicable as microorganisms are not susceptible to these antimicrobial agents.