> I take your point that companies can falsely advertise their products. I think there is a place for a government body to make sure claims about healthcare products are factual.

The problem is that deciding whether something is factual is a lot easier for simple things. For something like this, there are vaguer connections between facts like plaque removal and more nebulous things like meaningful outcomes for patients.

> In this particular case we are talking about a drug that appears to not cause any harm.

Other than brain swelling or bleeding, headache, falling, diarrhea, and confusion, delirium or disorientation, you mean?