Don Lemon does whatever Don Lemon does; same with Chris Cuomo, which is why their programs continually overlap for the first 6 to 10 minutes much to the chagrin of master control and floor producers, and quite frankly I can't stand Brian Stelter. Anyway all of their comments and actions are out of my friends shifts anyway...
But my personal connections aside, I am looking at it objectively rather than personally. That chyron is again, factually true. ivermectin is a de-wormer, and furthermore
it's been unproven to treat covid-19. All it is, frankly an eye-catching chyron, and most people know ivermectin from the media as its use for Horse de-wormer unless you want them to say "taking a drug for intestinal strongyloidiasis and onchocerciasis that's unproven for COVID-19"