The 79-year-old said government health warnings would soon be printed on packets—often sold under the brand name Tylenol in the US—advising pregnant women to avoid the drug. Britain's regulator, the Medicines and Healthcare Products Regulatory Agency (MHRA), also stressed there is 'no evidence that taking paracetamol during pregnancy causes autism in children.' 'Paracetamol can significantly damage the liver if taken incorrectly and can cause death,' Dr Hannbeck warned. 'If the patient has taken paracetamol and the pain is not going away, speak to your pharmacist for an alternative painkiller rather than topping up on paracetamol. Dr Diddier Prada, assistant professor of population health science at Mount Sinai, added: 'Pregnant women should not stop taking medication without consulting their doctors.