Disclaimer: please note I'm not a medical professional.
Last week I took ivermectin for what turned out to be a cold. I'd been feeling tired and had a little congestion, but didn't feel sick until Monday morning. I took a COVID test Tuesday (the soonest I could get one), and Tuesday evening started taking ivermectin.
I immediately felt better. Maybe there was a placebo effect; maybe it really started working that fast. Still, I got very tired early in the evening Tuesday and Wednesday, which is unusual for me, and had a runny nose. But the mildly miserable feeling you get when you're fighting a cold was gone. I am still coughing, but it's a dry, itchy cough. The only other cold remedies I took were a few doses of Mucinex and lots of cough drops. I felt well enough yesterday to go out in the cold and plant some fountain grass. I'd have planted the 15 coral bell plants I bought on sale, but it got dark. Today has been snowy and windy.
The ivermectin affected my vision. It was like looking through a black screen--not exactly, but that's the best way I can describe it. Or like when you've been in the sun too long. I especially noticed it in the lower part of my field of vision. It was harder to see things in the dark, too. My vision was a little off this morning, but is now back to normal. (I stopped taking the ivermectin Thursday evening--I ran out.) I've seen comments online from people who had the same side effect, but nobody said they had to see a doctor or that the side effect was permanent or got worse.
I slept very sound. I usually wake up a few times in the night and go right back to sleep, but I slept all night a couple of times. I didn't wake up groggy, either.
Yesterday I tried to buy more ivermectin at Tractor Supply, but they were sold out. I ordered more.
I'll repeat my disclaimer: I'm not a medical professional. I am a former engineer and pretty good at math. Contrary to popular belief, engineering students don't spend their days learning appliance repair. If you're familiar with Dr. Richard Bernstein, who's also a former engineer, his book Diabetes Solution contains the sort of calculations engineering students do daily. If you're unable to do such calculations, I don't recommend trying to figure out a dose of horse ivermectin for yourself. Nor would I recommend getting a horse dewormer with other medications in it. As a former employer used to say, "When in doubt, don't."