Trump said that “effective immediately” the Food and Drug Administration “will be notifying physicians that the use of acetaminophen,” commonly sold under the brand name Tylenol, “during pregnancy can be associated with a very increased risk of autism.”

Rather worryingly, the POTUS also said he was dispensing vaccine advice based on “common sense” and “what I feel”. Scientifically speaking, no link between acetaminophen and Autism Spectrum Disorders currently exists, leading to a good amount of backlash following Trump’s announcement.