Is it true that perchlorate was used as a medicine?
Yes, in the 1950s perchlorate was approved by the U.S. Food and Drug Administration as a safe and effective medication to treat people with overactive thyroid glands. While it has been replaced in the U.S. with newer medications (partly because it took enormously high doses to have any effect, and these doses had to be given frequently because perchlorate is so rapidly eliminated from the body ). [1] Perchlorate still is used as a medicine in other parts of the world. Because of its long-standing use as a medicine, we know much today about how perchlorate works in the body.
