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We now know that many, if not most, cases of autism are a chemically-induced injury which occurs when babies and children with oxidative stress are given acetaminophen (commonly branded Tylenol in the US).​

Vulnerability from the Start

The prevalence of chemical-injury by acetaminophen can be significant, especially in the first 10 days of life for babies. There is simply too much vulnerability for these small humans trying to start life on their own.

Fortunately, most autism-related concern ceases after age 5.

Read the full story

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You Can Be the Change

Rise of autism over time

With your help, we could see the return of autism rates as they were in the 70’s, before the rise of acetaminophen use; only 1 in 2,500 children had autism.


The dramatic increase in popularity of acetaminophen use in babies mirrors the rise in autism that started in the 80’s.

Based on available data, it’s reasonable that the vast majority of autism, possibly more than 90%, could be prevented if we stop exposing the developing brain to acetaminophen.

90% or more could be prevented

In other words, you could help to prevent up to 9 out of every 10 cases of autism spectrum disorder.

Help 9 out of 10 cases of autism
I want to take action.  Tell me how.

Exactly how much autism is induced by acetaminophen exposure?

Sadly, nobody knows, and nobody will know with certainty until we stop using the drug during early brain development.

In our published analysis of available evidence, we conclude that it's likely that acetaminophen induces more than 50% of all cases of autism, and entirely possible that the vast majority of autism, more than 90% of all cases, is caused by acetaminophen exposure.

20 lines of evidence - a summary
What is the Evidence Acetaminophen Causes Autism?

Over the past decade, more than 20 lines of evidence have been found to conclude that many, if not most, cases of autism are caused by acetaminophen (Tylenol) in susceptible babies and children.  

What are "Lines of Evidence"?

Each line of evidence is a scientific experiment or observation that points to the conclusion.


Our 20 lines of evidence include studies in laboratory animals, associations in time, associations with human activities, pharmacological and biochemical observations, and observations in pregnant women, babies and small children.  

What Do We Do Without Acetaminophen?

We can not give medical advice, but Tylenol has never been shown to save a single human life, nor has it ever been tested as safe for children.  The best advice we can give is for parents and gaurdians to make a plan in advance. 


How Can I Take Action?

We know the evidence, we know what action needs to be taken and now with your help we can raise our voices to allow parents, guardians, lawmakers, medical professionals and others know what we can do to change this story. 


Being informed is one of the most important parts of making change. Read about the 20 lines of evidence so that you can learn, share, and advocate for others to know too.


Share the message with other parents and guardians to let them make educated decisions on administering acetaminophen to their babies and children.


Participate in the cause by taking personal action, whether posting on social media, calling your local representatives, and participating in other initiatives.

Is there another way you
want to help?

Let us know through the form here and we will get back to you as soon as we can. 

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About WPLab Inc.

WPLab is a not-for-profit company that conducts research and education related to immune system dysfunction in high-income countries. A current focus is the interaction between the immune system and acetaminophen (paracetamol) early in life, and how that interaction affects brain development. is part of the WPLab Inc. research and education. We are currently conducting laboratory work, and, at the same time, work with social media and other venues to educate caregivers about what is known regarding the impact of acetaminophen (paracetamol) on the developing brain. For more information about WPLab, please see our website at

Copyright © WPLab, Inc. 2023 |

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