The link you provided still stands behind the main claim... - "We retract the part of our article that relied on the data from Dr. Elgazzar’s study. But the broader point stands: There’s strong evidence of ivermectin’s efficacy in treating Covid-19."

The problem is that there isn't. A metastudy found that virtually the entire positive affect attributed to ivermectin derived from the Elgazzar study, which was fraudulent. Ivermectin doesn't work on COVID.