Synonyms: Vibramycin (TN);Doxycycline hyclate (USP);(2Z,4S,4aR,5S,5aR,6R,12aS)-2-(amino-hydroxy-methylidene)-4-dimethylamino-5,10,11,12a-tetrahydroxy-6-methyl-4a,5,5a,6-tetrahydro-4H-tetracene-1,3,12-trione; ethanol; hydrate; dihydrochloride;Doxycycline hydrochloride hemiethanolate hemihydrate;DOXY;Doryx (TN);Doryx;Doxycycline Hcl;Dipivefrin HCl;