Doctors have urged people not to combine two widely used over-the-counter medications because taking them together could harm your health.
The warning follows a controversial press conference held by Donald Trump and Robert F. Kennedy Jr., during which both claimed Tylenol had a link to autism — a claim medical experts strongly reject.
Now, doctors are cautioning against taking Tylenol and NyQuil at the same time.
Even though the medications serve different purposes — Tylenol relieves pain, while NyQuil treats nighttime cold and flu symptoms — both contain acetaminophen.
“People are, without realizing it, double-dosing,” Dr. Brynna Connor told Parade. “A maximum of 4,000 milligrams for a healthy adult, and frankly, I tell most people to stay well under 3,000 milligrams.
“Exceeding that, even for a day or two, can cause severe, irreversible liver damage. It’s a remarkably fast track to liver failure, and people do it all the time.”
Doctors are warning against combining Tylenol with NyQuil, just months after Trump made unusual claims about the drug.
Although your body can handle acetaminophen, it must stay within safe limits.
Dr. Parth Bhavsar also told the magazine that mixing NyQuil and Benadryl, an allergy medication, can cause drowsiness, confusion, slowed breathing, and a higher risk of falling.
Both Benadryl and Tylenol contain diphenhydramine, so taking them together can lead to memory loss, urinary retention, and dizziness.
Trump and RFK Jr. suggested that taking Tylenol during pregnancy could raise autism rates in newborns. In September, they claimed that any amount of Tylenol posed risks to pregnant women during a highly criticized press appearance.
Trump, who struggled to pronounce “acetaminophen,” claimed the drug was associated with a “very increased risk of autism” in newborns.
“Effective immediately, the FDA will be notifying physicians that the use of aceta— well, let’s see how we say that,” Trump said before pausing. He slowly sounded out each syllable before trying again. “Acetam — enophin. Acetaminophen. Is that OK? Which is basically commonly known as Tylenol.”
However, a new study challenges the president’s claims. Researchers from institutions in the United Kingdom, Spain, and Australia analyzed nine major reviews of the drug.
The reviews contained a total of forty studies, including one that Trump referenced.
According to the researchers, the existing evidence “does not show a clear link between in utero exposure to paracetamol and autism and ADHD in offspring.”
They added that confidence in the findings of these systematic reviews — many of which relied heavily on overlapping studies — ranged from low to critically low.
A new study also disputed claims made by the president and his health secretary. Researchers reported that seven of the reviews had potential bias and unmeasured factors, and only one properly accounted for genetic, environmental, and lifestyle influences.
Once those factors were included, the suggested link between Tylenol and autism “disappeared or reduced.”
The American College of Obstetricians and Gynecologists also commented, telling The Independent that the findings did not surprise them. A spokesperson said there is “no causal relationship between the prudent use of acetaminophen in pregnancy and autism or other neurodevelopmental disorders in offspring.”
In short, they do not believe the evidence is strong enough to claim that using Tylenol during pregnancy increases the risk of autism.
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