* A [[Penicillins|penicillin]] plus a [[Potentiated-Sulphonamides|potentiated sulphonamide]] has minimally additive effects against pathogens but additive effects against the commensal gastrointestinal microflora | * A [[Penicillins|penicillin]] plus a [[Potentiated-Sulphonamides|potentiated sulphonamide]] has minimally additive effects against pathogens but additive effects against the commensal gastrointestinal microflora |