I've known people my whole life who will eat bottles of OTC painkillers a week. Many of them women because of menstrual issues. One I know will take 2000mg of paracetamol / acetaminophen a few times a day for a week or two at a time.People have forgotten that these medications, along with Ibuprofen and other NSAIDs cause significant damage over time when overused. Lots of people are retarded and think "It's OTC so it must be safe, otherwise you need a prescription"
I'm sure it causes some long term effects when abused to this point. Autisim prevention might be a bit of a stretch and I'd like to see some actual data/studies done to better connect these two other than the casual connections cited. If RFK really thinks this is a valid root cause, enough to get Donny to make a statement, then there should be no problem dumping a few million into a concrete study.