Antibiotic improve treatment outcome as the combined effect of both antibiotics is better than their individual effect. Methicillin-resistant Staphylococcus aureus infections may be treated with a combination therapy of fusidic acid and rifampicin. Antibiotics used in combination may also be antagonistic and the combined effects of the two antibiotics may be less than if the individual antibiotic was given as part of a monotherapy. For example, chloramphenicol and tetracyclines are antagonists to penicillins and aminoglycosides. However, this can vary depending on the species of bacteria. In general, combinations of a bacteriostatic antibiotic and bactericidal antibiotic are antagonistic. Antibiotics are commonly classified
Subtherapeutic antibiotic use in swine meat resulting in an assumed decrease in potential Foodborne illness risk. While the benefits of subtherapeutic antibiotic administration are well-documented, there is much concern and debate regarding the development of bacterial antibiotic resistance associated with their use. This is a specific case of the more general practice of antibiotic use in livestock. Currently, there appears to be a lack of reliable data associated with the amount of antibiotics used in livestock production. In 2001, the Union of Concerned Scientists (UCS) published that 24.6 million pounds of antibiotics are used annually for growth promotant purposes. This, they claimed, represented 70% of