title: A comparison of bioavailability of free bases and hydrochloride salts of chlortetracycline, demethylchlortetracycline, and methacycline.
mesh_terms: D000818:Animals; D001682:Biological Availability; D002626:Chemistry, Pharmaceutical; D002751:Chlortetracycline / Q000378:metabolism*; D003707:Demeclocycline / Q000378:metabolism*; D006801:Humans; D006851:Hydrochloric Acid; D007408:Intestinal Absorption; D008297:Male; D008690:Methacycline / Q000378:metabolism*; D051381:Rats; D012492:Salts
chemical_list: D012492:Salts; D003707:Demeclocycline; D008690:Methacycline; D006851:Hydrochloric Acid; D002751:Chlortetracycline