Paracetamol causes autism? WHO responds

The World Health Organisation (WHO) has dismissed claims that the use of paracetamol (acetaminophen) during pregnancy causes autism, insisting there is no scientific evidence to support the allegation.

In a statement on Wednesday, WHO noted that despite widespread studies over the last decade, including large-scale research, no consistent association has been found between paracetamol use in pregnancy and autism.

“Extensive research has been undertaken, but at this time, no consistent link has been established,” WHO stated.

The global health body advised expectant mothers to always follow medical guidance before taking any drug, especially within the first trimester, stressing that “any medicine should be used with caution during pregnancy and in line with advice from health professionals.”

WHO also reiterated that vaccines do not cause autism, describing earlier studies suggesting such links as “flawed and discredited.” It noted that since 1999, independent experts advising WHO have consistently confirmed that vaccines, including those with thiomersal or aluminium — are safe.

According to the organisation, childhood vaccine schedules, which have been adopted globally, have saved at least 154 million lives over the past 50 years.

“When immunisation schedules are delayed or disrupted, the risk of infection rises sharply, not just for children but for the entire community,” WHO added.

The clarification comes after U.S. President Donald Trump, in a recent remark, urged pregnant women to avoid Tylenol and also called for changes to the standard vaccine programme for infants, citing an unproven link to autism.

Medical groups, however, maintain that acetaminophen remains one of the safest painkillers for pregnant women when used appropriately.

WHO said autism and other neurodevelopmental conditions remain a global priority and pledged to continue working with partners, including autistic-led organisations, to advance care and support for affected individuals and families.