Ivermectin is now available over the counter in some US states. What is it used for?

Three states have legalized over-the-counter sales of ivermectin, but people should only take it for approved uses with guidance from physicians, Dr. Leana Wen says.

​ Three states have legalized over-the-counter sales of ivermectin, but people should only take it for approved uses with guidance from physicians, Dr. Leana Wen says. Read More Breaking News, Latest News and Videos | CNN