<unk> 
Doxycycline
Minocycline<unk> Glycylcyclines
Tigecycline
Doxycycline
Minocycline<unk> Tigecycline
Tetracyclines
Aminoglycosides
Cephalosporins
Fluoroquinolones
Beta-lactams
Penicillins
Carbapenems
Rifamycins