The drug is used in form of<unk>  hydrochloride dihydrate, which is sparingly soluble in water and slightly soluble in ethanol.<unk>  reacts acidic in aqueous solution.
Minocycline
Tetracycline
Extended-spectrum penicillin
Sarecycline
Cephalosporin
Oxytetracycline
Teicoplanin
Doxycycline