The flagship products of the Tylenol company are acetaminophen pills and syrups, but Tylenol sells other products as well, including medicines with a mixture of active ingredients. The Tylenol company now has a pop-up on its website pointing customers to this response , which correctly points out there is no credible link between Tylenol and autism. What the science actually says about acetaminophen and autismThe short answer: There is no credible link between autism and the use of acetaminophen in pregnancy. People who take acetaminophen during pregnancy tend to be different than those who don’t—for example, if somebody takes Tylenol during pregnancy because they are sick, it may be the sickness rather than the Tylenol that is the risk factor. What medical experts say about acetaminophen in pregnancyAcetaminophen (including Tylenol) is generally considered the safest pain reliever for use in pregnancy.