Table 3.

PB concentrations in the combination of CBD (256 µg/mL) + PB + PAβN (50 µg/mL) compared to PB concentrations in the combination of CBD (256 µg/mL) + PB.

Strain	PB MIC (µg/mL)	CBD 256 µg/mL	CBD 256 µg/mL plus PAβN 50 µg/mL	PAβN 50 µg/mL
		+ PB MEAC (µg/mL)	+ PB MEAC (µg/mL)	+ PB MEAC (µg/mL)
K. pneumoniae ATCC 13883a	8	0.125	≤ 0.01	8
K. pneumoniae ATCC BAA-1705	0.5	0.25	0.01	0.25
K. quasipneumoniae ATCC 700603	0.5	0.125	0.03	0.25
E. coli ATCC 25922	0.5	0.06	≤ 0.002	0.03
E. coli 72Hb	2	1	≤ 0.01	1
E. coli NCTC 13846	2	1	≤ 0.03	1
A. baumannii ATCC 19606a	1	0.25	≤ 0.005	1
A. baumannii 136 SPc	1	0.25	0.06	1
P. aeruginosa ATCC 27853	1	1	≤ 0.005	0.06
P. aeruginosa HC 103j	2	1	≤ 0.005	0.06
P. aeruginosa PAO1	1	0.5	≤ 0.005	0.06
S. maltophilia 13673a	2	0.25	≤ 0.01	0.03
E. tarda ATCC 15947a	> 8	0.25	≤ 0.01	> 8

CBD Cannabidiol, PB Polymyxin B, ATCC American Type Culture Collection.

^aType strain.

^bFernandes et al.²⁷.

^cClímaco et al.³⁰.

^dGaletti et al.²⁹.