Yeah...I think that's right... It usually works out to between 12 and 24 mg per patient per dose... But there's several different rationales and protocols. There's prophylaxis and then there's treatment, too ... FLCCC.net has a few protocols listed on their website. There's also Dr.s Fareed and Tyson, who have a remarkably strong record of 10k+ patients and zero deaths (where the patients came in prior to the advanced stages of illness). Ivermectin has been shown to be both safe and effective on its own...
https://www.cureus.com/articles/82162-ivermectin-prophylaxis-used-for-covid-19-a-citywide-prospective-observational-study-of-223128-subjects-using-propensity-score-matching
But the better Doctors also give it in combination with other chemotherapies, like Quercitin and Zinc, Vitamin D3, Fluvoxamine, Zpacks, etc... Always consult a reliable physician, that you trust, and who follows the science, not the dictates from the Cult of Fauci, Big Pfharma and the captured regulatory establishment ...