…is very poor according to a new study, and the ones that preceded it. Summary: few claims in medical drug advertisements refer to high-quality studies that support the claims. This is not a good situation vis-a-vis homeopathy, for example.
So my positive take out of this is: at least we are doing the research and allowing people to go back and check quality of assertions. With homeopathy, every time we go back and check the quality of assertions, they are found to be poor.