They would love to, but they are limited in the scope of their authority. Homeopathy companies tend to label their products as "dietary supplements" so they don

They would love to, but they are limited in the scope of their authority. Homeopathy companies tend to label their products as "dietary supplements" so they don't fall under FDA drug regulations. When they slip up with their marketing, the FDA does get involved http://news.discovery.com/human/health/homeopathy-takes-hits-in-europe-us-120821.htm http://news.discovery.com/human/health/homeopathy-takes-hits... (see "Skirting Drug Regulations").