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Advice You Can Trust: The Facts on Vaccines, Tylenol, and More

Parents are understandably concerned about misinformation in the news and online regarding recommended vaccines and medications. We want to bust the myths and share the facts about what scientific research actually shows, and what areas still need more study.

MMRV Vaccine

The MMR and MMRV vaccines help children build immunity against serious diseases. The MMR vaccine protects against measles, mumps, and rubella and is typically given at 12 months along with varicella (chickenpox) as a separate vaccine. MMRV is a combination vaccine for all four diseases and given as the second dose at 4 years. These vaccines have been deeply studied and show little risk when given as recommended by the American Academy of Pediatrics.

Hepatitis B Vaccine

Hepatitis B is a virus that can damage the liver and lead to lifelong health problems. The majority (90%) of infants infected at birth develop chronic hepatitis, and any child without the vaccine is vulnerable to exposure from their caregivers. A baby’s immune system is ready for the hepatitis B vaccine as soon as they are born, and giving newborns the first dose of the vaccine within 24 hours of birth remains the best protection against serious health problems like liver disease and cancer. Additional doses are given at 1-2 months and 6-18 months.

Tylenol in Kids

Acetaminophen, also known as paracetamol and sold under the brand name Tylenol and other brand names, is an over-the-counter (OTC) medicine used to reduce fevers and relieve pain.
Pediatricians recommend acetaminophen (Tylenol) for infants over 12 weeks and children for certain conditions related to pain and fevers. Decades of scientific research have not linked acetaminophen to autism, and it’s considered safe when taken according to directions.

Use of Tylenol (Acetaminophen) During Pregnancy

There is currently no credible evidence from scientific studies that support the claim that acetaminophen in pregnancy causes autism. What we do know is that fever in pregnancy can be harmful to both mother and baby, and acetaminophen may be recommended by their doctor to alleviate worrisome symptoms.

Autism is a complex neurodevelopmental condition, and research is ongoing to provide more information. Parents should not be led to feel that autism in their child is the result of something they did or didn’t do. Autistic children are part of the beauty and diversity of humanity and should never be stigmatized.

The Use of Leucovorin in Autistic Children

Another area of research around autism involves Leucovorin, a form of folic acid. Some recent studies suggest that Leucovorin may improve some communication skills in some autistic children, however there is no evidence that it is widely effective. These findings are preliminary, and much more research with standardized trials is needed to determine its safety and efficacy before it can be recommended for broad use in autistic children.

One concern among pediatricians is that while Leucovorin is a well-known generic drug developed to alleviate symptoms related to chemotherapy, different manufacturers use different additives that are not well tolerated in children. In short, more studies are needed to safely recommend this drug for autistic children.

Understanding Autism in Children

Metro’s Approach to Autism Care

At Metropolitan Pediatrics, we welcome autistic children and their families with respect and compassion, while providing up-to-date medical guidance. Our pediatricians stay current on the latest research so we can provide families with clear, evident-based information and supportive care. If you have questions about autism and medication options, we’re here to talk as your trusted partner in your child’s health.

October 9, 2025 11:41 am

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