Correct, not nearly as safe as Ivermectin.

Ex : Hydroxychloroquine is regularily used to treat Lupus (auto-immune disorder ) and the patients have to be followed for risk of cardiac problems and stop treatment as first hints of vision damage.

It's a question of after how much of it will you start losing vision, or have heart problems ( usually several years of treatment, after which patients have to switch to different medications, that might not work as well and have other side effects )