He has taken Clindamyacin, Ivermectin, a steroid dose pack, and Albenza which cost $1356 for 6 pills.
https://www.miamiherald.com/news/nation-world/national/article215434275.html
Ivermectin is $32 for a 100ml vial. One vial dose rate is 5ml subcutaneos per 100 pounds. So that runs roughly $5 to treat hookworms. One dose lasts 90 days in your system.