If your source is a tweet, you need a better source. The chairmain of the Tokyo Medical Association said: "Regarding the antiparasitic drug "ivermectin", it shows the number of infections and deaths of the new corona in a country that is prophylactically administered for another disease in Africa. It is necessary to thoroughly study the clinical trial, but it seems that we are at the stage where it is okay to have the patient give an informed outlet and get permission to use it. " (machine translated)" - August 13th, 2021 https://www.tokyo-np.co.jp/article/123988 Headline significantly oversells his statement.