<unk>  is a semi-synthetic macrolide antibiotic. It is used to treat respiratory tract, urinary and soft tissue infections.<unk>  is derived from erythromycin, containing the same 14-membered lactone ring. However, an N-oxime side chain is attached to the lactone ring.  It is also currently undergoing clinical trials for the treatment of male-pattern hair loss.<unk>  is available under several brandnames, for example Surlid, Rulide, Biaxsig,<unk> ar and<unk> imycin.
Roxithromycin
Azithromycin 
Dirithromycin
Telithromycin
Levofloxacin 
Difloxacin
Enoxacin
Gemifloxacin