The five antibiotics used were colistin, kanamycin, vancomycin, rifampicin, and erythromycin. All are commonly used to treat bacterial infections. They found that the one treated with a smaller dose of CBD reduced the production of OMVs by an average of 73 percent, while the stronger one brought it down by 54 percent. The researchers believe the combination of antibiotics and CBD has huge potential as a new treatment for infections with antibiotic-resistant bacteria.