These drugs kill the mitocondria in your red blood cells. Once you take them, your body can never make its own Vit. D again. These were developed for use with chemo. To fight the infection chemo causes as it destroys the body. Except, when added to chemo, death came faster than the projected profits could be realized. The FDA allowed the drug makers to put them out as general antibiotics. Not to be prescribed to people over 60. Or in combination with prednisone and ibprofen. Yet Dr’s. do it every day and dont care about the terrible damage and possible deaths these drugs may cause.