FLCCC early treatment protocol has a table at the bottom of this page with ivermectin dosage by weight. Yes, the protocols advise taking with food.
For 180 lbs:
0.2 mg/kg dose would be 16mg – 17mg
0.3 mg/kg dose would be 23mg – 26 mg
0.4 mg/kg dose would be 31mg – 35 mg
0.6 mg/kg dose would be 47mg – 52 mg
https://imahealth.org/protocol/i-care-early-covid-treatment/
Not sure which protocol you are looking to use. Here is the long Covid and long Vax protocols as well:
https://imahealth.org/protocol/i-recover-long-covid-treatment/
https://imahealth.org/protocol/i-recover-post-vaccine-treatment/
imahealth.org
I-CARE: Early COVID Treatment - FLCCC Alliance
I-CARE Early Covid Treatment Download I-CARE Early COVID Summary Download I-CARE Early COVID Protocol A Guide to Early Treatment of COVID-19 Early treatment is critical and the most important factor