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 animals. Some scientists argue that withdrawing antibiotic use will result in more diseased animals, which can result in an increased bacterial load on meat and an increased risk of food-borne illness. Opponents of such a ban argue that the economic implications would be devastating in terms of higher food prices. One study found that the price of pork would increase five cents a pound. Subtherapeutic antibiotic use in swine Antibiotics are commonly used in commercial swine production in the United States and around the world. They are used for disease treatment, disease prevention and control, and growth promotion. When used