Marik is one of the leaders of the Front Line COVID Critical Care Association (FLCCA)
Also check out videos by his associate in FLCCA, Dr Pierre Kory, including his recent talk at the US Congress.
Marik and Kory are very encouraged about the study data of Ivermectin. According to Kory it was developed by Merck in the 1980s and won a Nobel Prize. Millions of doses have been distributed.
You can understand why Fauci and the US NIH don't like it. If it is as potent against SARS2 as it seems, it will cost the NIH a bundle of cash. The NIH owns half of the patent of the Moderna vaccine. I suppose they don't care about all of those who will suffer and die without the Ivermectin.