title: [Ionized fluorine in the plasma and urine of subjects treated with organofluorine drugs prescribed in rheumatology].
abstract: The elimination of ionized urinary fluorine was studied in groups of eight subjects treated during several days with niflumic acid, flufenamic acid, sulindac, antrafenine and floctafenine. Sulindac and floctafenine do not changes this elimination. After administration of niflumic acid, flufenamic and antrafenine, the urinary elimination of ionized fluorine increase in all the subjects. This increase is manifested from the start of treatment and persists for several days after it has been stopped. The administration of three drugs also results in an elevated level of ionized plasmic fluorine the duration of treatment. The results prove the existence in the human organism of a metabolic process capable of effecting the ionization of the organic fluor contained in the drugs studied. This biotransformation causes a fluorine impregnation of endogenous origin that is permanent and relatively stable, and whose consequences are examined (risk of fluorine osteosis and possibility of therapeutic application).
mesh_terms: D000893:Anti-Inflammatory Agents / Q000378:metabolism*; D005439:Flufenamic Acid / Q000009:adverse effects / Q000378:metabolism* / Q000627:therapeutic use; D005461:Fluorine / Q000097:blood / Q000378:metabolism* / Q000652:urine; D006801:Humans; D009539:Nicotinic Acids / Q000378:metabolism*; D009544:Niflumic Acid / Q000009:adverse effects / Q000378:metabolism* / Q000627:therapeutic use; D012216:Rheumatic Diseases / Q000188:drug therapy*; D013467:Sulindac / Q000009:adverse effects / Q000378:metabolism / Q000627:therapeutic use; D062367:ortho-Aminobenzoates / Q000009:adverse effects / Q000378:metabolism / Q000627:therapeutic use
chemical_list: D000893:Anti-Inflammatory Agents; D009539:Nicotinic Acids; D062367:ortho-Aminobenzoates; D013467:Sulindac; D005461:Fluorine; D009544:Niflumic Acid; D005439:Flufenamic Acid
vernacular_title: Fluor ionisé dans le plasma et dans les urines de sujets traités par des médicaments organofluorés prescrits en rhumatologie.