In–Vitro Susceptibility of Mycobacterium Tuberculosis to Amoxicillin–Clavulanate

Mojtaba Varshochi; Mohammad Hossein Rastgar; Abdolnaser Raffi; Behrooz Nagil

Archives of Clinical Infectious Diseases

Infectious Diseases and Tropical Medicine Research Center, SBUMS

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In–Vitro Susceptibility of Mycobacterium Tuberculosis to Amoxicillin–Clavulanate

Author(s):

Mojtaba Varshochi^1,*,

Mohammad Hossein Rastgar¹,

Abdolnaser Raffi¹,

Behrooz Nagil¹

1Infectious Diseases and Tropical Medicine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran

Archives of Clinical Infectious Diseases:Vol. 1, issue 3; e93388

Published online:Jul 30, 2006

Article type:Research Article

Received:May 12, 2019

Accepted:Jul 18, 2006

How to Cite:Mojtaba VarshochiMohammad Hossein RastgarAbdolnaser RaffiBehrooz NagilIn–Vitro Susceptibility of Mycobacterium Tuberculosis to Amoxicillin–Clavulanate.Arch Clin Infect Dis.1(3):e93388.

Abstract

Background: The evidence of rapid spread of multidrug resistant Mycobacterium tuberculosis (MDR–TB) strains especially in high risk communities, persuade clinicians to find new drugs for this problem. β– lactams with few or no side effects has been reviewed as an alternative drugs for this issue. This study carried out to determine the effectiveness of amoxicillin–clavulanate in a group of Iranian patients.

Materials and methods: Amoxicillin–clavulanate was studied in five different minimal inhibitory concentrations (32- 512μg/ml) on 90 clinical strains of Mycobacterium tuberculosis (50 strains were sensitive and 40 were resistant to firstline anti-TB drugs).

Results: All strains were found resistant to amoxicillin–clavulanate in concentration of 32μg/ml. Only in concentration of 64μg/ml, sensitive strains (to first-line anti-TB drugs) were significantly more susceptible to amoxicillin–clavulanate than resistant strains. Five different MICs showed a non-significant difference in susceptibility to amoxicillin– clavulanate between strains with various resistance patterns to first-line anti-TB drugs. However, in 29 strains MIC were above 512μg/ml.

Conclusion: Although amoxicillin–clavulante might be a suitable candidate as a second-line anti-TB drug, further clinical trials are required to draw a firm conclusion.

Keywords

Mycobacterium tuberculosis

Multidrug resistant

Amoxicillin-clavulanate

References

1.
The references are available in PDF file.

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