Depends on weight.
There is a formula that’s been posted, here.
Also, a dosage posted by a Doc. I’ll try to find it, again.
Dr. Marik’s Covid protocol at EVMS:
From that:
• Ivermectin for pre- and postexposure prophylaxis (see ClinTrials.gov NCT04422561 &
NCT04425850). 200ug/kg immediately then repeat in 72 hours.
• Ivermectin for prophylaxis in high risk individuals. 150-200ug/kg (or 12 mg) ivermectin
weekly.