<unk>  (marketed as Declomycin, Declostatin, and Ledermycin) is a tetracycline antibiotic derived from a strain of Streptomyces aureofaciens.
Demeclocycline
Tibolone
Meclofenamic acid
Bumadizone
Fenozolone
Ciclesonide 
Aceclofenac
Gadoteric acid