Effect and mechanism of Qingre Huashi decoction on drug-resistant Helicobacter pylori

Table 7 Minimum inhibitory concentration of antibiotics against 12 clinical strains of Helicobacter pylori

Helicobacter pylori strain	AML (μg/mL)	CLR (μg/mL)	LEV (μg/mL)	MTZ (μg/mL)
1	0.016	16.0001	32.0001	64.001
2	0.064	24.0001	32.0001	256.001
3	0.016	8.0001	32.0001	256.001
4	0.064	16.0001	32.0001	256.001
5	0.064	32.0001	0.125	256.001
6	0.016	8.0001	3.0001	1.00
7	0.064	16.0001	32.0001	0.38
8	0.016	0.016	0.250	32.001
9	0.016	0.064	0.094	256.001
10	0.016	0.016	1.500	0.50
11	0.016	0.016	0.032	1.00
12	0.016	0.016	0.032	1.50

¹Antibiotic resistance.

MIC: Minimum inhibitory concentration; AML: Amoxicillin; CLR: Clarithromycin; LEV: Levofloxacin; MTZ: Metronidazole.