Check FLCCC.com. The recommendation is .2mg per Kilogram weight. You must add zinc to the protocol for effectiveness. The ivermectin brings zinc into the cells which then works against covid. I’m not a doctor but go to the site and you will see the recommendations.
0.2mg/kg for prophylaxis.
0.4/kg - 0.5mg/kg for therapeutic / early treatment
and load up on Vit D and take normal dose of Vit A & C.
and eat kale