FDA urges people to stop taking ivermectin to treat COVID-19

What they're saying: "The Mississippi Poison Control Center has received an increasing number of calls from individuals with potential ivermectin exposure taken to treat or prevent COVID-19 infection," state officials said in the letter.

• "At least 70% of the recent calls have been related to ingestion of livestock or animal formulations of ivermectin purchased at livestock supply centers," they added.
• "Never use medications intended for animals on yourself. Ivermectin preparations for animals are very different from those approved for humans," FDA guidance says.

Flashback: The World Health Organization in March issued a warning saying ivermectin should only be used in clinical trials because evidence of its use for the coronavirus was "inconclusive."