title: Effect of oral ferrous sulphate on the half-life of doxycycline in man.
mesh_terms: D000284:Administration, Oral; D000368:Aged; D001681:Biological Assay; D002986:Clinical Trials as Topic; D003864:Depression, Chemical; D004318:Doxycycline / Q000008:administration & dosage / Q000037:antagonists & inhibitors / Q000097:blood*; D005470:Fluorometry; D006207:Half-Life; D006801:Humans; D007275:Injections, Intravenous; D007408:Intestinal Absorption; D007501:Iron / Q000008:administration & dosage / Q000494:pharmacology*; D008102:Liver Circulation; D008875:Middle Aged; D010919:Placebos; D013431:Sulfates / Q000494:pharmacology; D013997:Time Factors
chemical_list: D010919:Placebos; D013431:Sulfates; D007501:Iron; D004318:Doxycycline