Thank you everyone for information. Looking up how to figure dosage, may be already addressed.
To give you a ballpark idea, it’s 0.2 mg/kg body weight, or 1 mg/11 pounds.
For the liquid you’ll need a syringe to pull it and measure it. I cc/ml per 110 lbs of human.
I use this website as a livestock ivermectin guide, it has worked great for me.
https://www.barnhardt.biz/ivermectin/