Thanks for trying to help out, but that's the FDA, not CDC. And this is a much murkier situation. Ivermectin does seem to help Covid, but it looks like that's correlation, not causation.

Astral Codex Ten has a great writeup on this, and a big controversial debate with the ivermectin crowd. It's pretty glorious, and I do recommend reading it in its entirety.

If you do want to call this a lie, I suppose I could see it. Someone claims something helps Covid, but it shouldn't, because it doesn't make sense, so instead of trusting the studies, they go out making a bold claim like this, that ivermectin is completely ineffective.

In any case, this does reduce trust in those agencies, when they ignore science and instead spout off politically-expedient dismissals of data.

But I wouldn't call it lying, really.