"Pfizermectin" is absolutely a full blown conspiracy theory that contends Paxlovid is functionally the same as ivermectin and there was an effort by Big Pharma to suppress ivermectin while they developed an on patent alternative. He repeatedly emphasizes that ivermectin is cheap in his video. I can't put myself through watching any more of it, but I can only assume he doesn't mention that the required concentrations for ivermectin to display said protease inhibition aren't achievable in vivo.