A new study published in The Lancet found no evidence of a link between the use of paracetamol (acetaminophen, known as Tylenol) during pregnancy and the risk of autism, ADHD or intellectual disability in children.[3][6][7] The researchers analyzed 43 studies with hundreds of thousands of participants from different parts of the world, including only those with well-documented drug use and verified medical records.[3][6] When siblings are compared, the original apparent associations are lost as factors such as genetics are taken into account.[1][2][6] A Swedish study of almost 2.5 million births also did not confirm an increased risk of autism, ADHD or mental retardation.[1][2] Lead author Asma Khalil said the findings were consistent and paracetamol did not increase the risk.[3] Paracetamol remains a safe choice for pregnant women for pain or fever when taken as directed by a doctor.[2][6][8]