|Resistance-modifying agents (RMA) include antibiotic adjuvants and other inhibitors of antibiotic resistance, as well as antibiotic potentiators. These are non-antibiotic compounds which act to block resistance mechanisms or enhance antibiotic action. These are often delivered in combination with an antibiotic (e.g. amoxicillin-clavulanic acid) and may either affect the host organism or the pathogen. Adjuvants and potentiators are therefore used to rescue the activity of existing antibiotic drugs, and are researched as an alternative solution to the antibiotic resistance crisis.