§A Tetracyclines
§B Amphenicols
§C Beta-lactam
antibacterials, penicillins
§D Other
beta-lactam antibacterials
§E Sulfonamides and trimethoprim
§F Macrolides, lincosamides and streptogramins
§G Aminoglycoside antibacterials
§M Quinolone
antibacterials
§R Combinations of antibacterials
§X Other antibacterials