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
Antibiotic resistance in gonorrhea ability of the antibiotic to get into, or stay in the bacterial cell. High level resistance of "N. gonorrhoeae" to tetracyclines was first reported in 1986 with the discovering of the "tetM" determinant. The mechanism of resistance is still unknown. "N. gonorrhoeae" has also shown resistance to the aminoglycoside class of antibiotics. These antibiotics bind to the 16s rRNA of the 30S subunit of the bacterial ribosome, thereby stopping transcription of the bacterial genome. Resistance appears to be acquired through porin-related mechanisms, much like the cephalosporin resistance mechanism. This mechanism would result in the access of the antibiotic to the