Something like 200 million people use ivermectin each year. After 33 years and 3.7 billion doses of use, it qualifies as one of the safest drugs around.

The TGA says it hasn't found any evidence that ivermectin is useful against Covid, but then we have to ask, has the TGA looked?

Ivmmeta.com lists 60 studies involving 25,000 people that show its useful and 3 that don't: