Green tea can enhance the effectiveness of antibiotics

Taking antibiotics? You might want to boost their powers by drinking some green tea. New research indicates that drinking green tea helps the action of important antibiotics in their fight against resistant superbugs, making them up tothree times more effective.

“We tested green tea in combination with antibioticsnull against 28 disease causing micro-organisms belonging to two different classes,” says Dr Mervat Kassem from the Faculty of Pharmacy at Alexandria University in Egypt. “In every single case green tea enhanced the bacteria-killing activity of the antibiotics. For example the killing effect of chloramphenicol was 99.99% better when taken with green tea than when taken on its own in some circumstances.”

Green tea also made 20% of drug-resistant bacteria susceptible to one of the cephalosporin antibiotics. These are important antibiotics that new drug resistant strains of bacteria have evolved to resist.

The results surprised the researchers, showing that in almost every case and for all types of antibiotics tested, drinking green tea at the same time as taking the medicines seemed to reduce the bacteria’s drug resistance, even in superbug strains, and increase the action of the antibiotics. In some cases, even a low concentration of green tea was effective.

These data were presented during the Society for General Microbiology’s 162nd meeting recently held at the Edinburgh International Conference Centre.