Tylenol (acetaminophen)

Technology

A common over-the-counter medication used to treat pain and fever. Its active ingredient, acetaminophen, is discussed in relation to a controversial study linking its use during pregnancy to an increased risk of autism and ADHD in children.


First Mentioned

9/27/2025, 5:10:03 AM

Last Updated

9/27/2025, 5:11:33 AM

Research Retrieved

9/27/2025, 5:11:33 AM

Summary

Tylenol is a widely recognized brand of medication whose active ingredient is paracetamol, known as acetaminophen in North America. Its name is derived from the chemical N-acetyl-para-aminophenol. Tylenol is marketed for its efficacy in reducing pain and fever, as well as alleviating symptoms associated with allergies, colds, coughs, headaches, and influenza. The brand is currently owned by Kenvue, a subsidiary of Johnson & Johnson. Recently, Tylenol (acetaminophen) became a subject of discussion on the All-In Podcast, where hosts reviewed a controversial press conference by Donald Trump and Bobby Kennedy concerning a potential link between its use during pregnancy and autism, delving into scientific theories involving autoimmunity and the folate receptor.

Referenced in 1 Document
Research Data
Extracted Attributes
  • Drug Class

    Analgesic, Antipyretic

  • Primary Uses

    Pain relief, fever reduction

  • Additional Uses

    Alleviates symptoms of allergies, colds, coughs, headaches, influenza, muscle aches, menstrual periods, toothaches, backaches, osteoarthritis, reactions to vaccinations

  • Forms Available

    Caplets, dissolve packs, liquids, chewables, tablets, capsules, extended-release tablets, orally disintegrating tablets

  • Active Ingredient

    Paracetamol (Acetaminophen)

  • Chemical Name Derivation

    N-acetyl-para-aminophenol (APAP)

  • Mechanism of Action (proposed)

    Elevates body's overall pain threshold, helps body eliminate excess heat, blocks release of certain chemicals in the brain that signal pain

  • Serious Side Effects (if overdose/allergic reaction)

    Skin rash, itching, hives, swelling of face/lips/tongue/throat, liver injury, redness/blistering/peeling of skin, hoarseness, difficulty breathing/swallowing

Timeline
  • The All-In Podcast (episode E171, document d827474b-5e2a-43d5-bc56-0eb02e4d8203) hosts Jason Calacanis, Chamath Palihapitiya, David Sacks, and David Friedberg discuss a controversial press conference by Donald Trump and Bobby Kennedy concerning a potential link between Tylenol (acetaminophen) use during pregnancy and autism, exploring scientific theories related to autoimmunity and the folate receptor, and a paper by Andrea Bakarelli. (Source: Related Documents, Web Search)

    2023-10-27

Tylenol (brand)

Tylenol () is a brand of medication, advertised for reducing pain, reducing fever, and relieving the symptoms of allergies, cold, cough, headache, and influenza. The active ingredient of its original flagship product is paracetamol (known in the United States, Canada, and various other countries as acetaminophen), an analgesic and antipyretic. Like the words paracetamol and acetaminophen, the brand name Tylenol is derived from a chemical name for the compound, N-acetyl-para-aminophenol (APAP). Tylenol is sold under the Kenvue brand, owned by Johnson & Johnson.

Web Search Results
  • Acetaminophen Explained: Uses, Dosage & Safety | TYLENOL®

    Acetaminophen is an active ingredient in TYLENOL® products and in more than 600 other over-the-counter (OTC) and prescription medicines. Do not take more than one medicine containing acetaminophen at the same time. Adult TYLENOL® with Acetaminophen comes in many forms including caplets and dissolve packs for those who prefer not to take pills. Additionally for children, TYLENOL® is available in liquids, chewables and dissolve packs. [...] What is Acetaminophen? #### Acetaminophen (pronounced a SEET a MIN oh fen) is the primary active ingredient in TYLENOL® products, and is one of the most common active drug ingredients in the U.S. It is found in over-the-counter (OTC) and prescription medicines. Image 2: Young man helping grandfather on computer What does acetaminophen do and how does it work? [...] Acetaminophen is a pain reliever and fever reducer. It is thought to work to relieve minor aches and pains by elevating the body’s overall pain threshold so you feel less pain, and lowers your fever by helping your body eliminate excess heat. What is acetaminophen used for?

  • Acetaminophen Capsules or Tablets: Uses & Side Effects

    Acetaminophen is a medication that can help treat mild to moderate pain, and it can also help reduce a fever. It may also be used for other purposes as well. Follow your healthcare provider’s instructions. You should take this medication by mouth with a glass of water and follow the directions on the label. A common brand name is Tylenol®. Advertisement [...] Allergic reactions—skin rash, itching, hives, swelling of the face, lips, tongue, or throat Liver injury—right upper belly pain, loss of appetite, nausea, light-colored stool, dark yellow or brown urine, yellowing skin or eyes, unusual weakness or fatigue Redness, blistering, peeling, or loosening of the skin, including inside the mouth Side effects that usually do not require medical attention (report to your care team if they continue or are bothersome): [...] COMMON BRAND NAME(S): Aceta, Actamin, Anacin Aspirin Free, Aphen, Genapap, Genebs, Mapap, Pain & Fever, Pain and Fever, PAIN RELIEF, PAIN RELIEF Extra Strength, Pain Reliever, Panadol, PHARBETOL, Plus PHARMA, Q-Pap, Q-Pap Extra Strength, Tylenol, Tylenol CrushableTablet, Tylenol Extra Strength, Tylenol Regular Strength, XS No Aspirin, XS Pain Reliever ### What should I tell my care team before I take this medication? They need to know if you have any of these conditions:

  • Acetaminophen: MedlinePlus Drug Information

    Acetaminophen is used to relieve mild to moderate pain from headaches, muscle aches, menstrual periods, colds and sore throats, toothaches, backaches, reactions to vaccinations (shots), and to reduce fever. Acetaminophen may also be used to relieve the pain of osteoarthritis (arthritis caused by the breakdown of the lining of the joints). Acetaminophen is in a class of medications called analgesics (pain relievers) and antipyretics (fever reducers). It works by changing the way the body senses [...] ## What side effects can this medication cause? Acetaminophen may cause side effects. ### Some side effects can be serious. If you experience any of the following symptoms, stop taking acetaminophen and call your doctor immediately or get emergency medical attention: red, peeling or blistering skin rash hives itching swelling of the face, throat, tongue, lips, eyes, hands, feet, ankles, or lower legs hoarseness difficulty breathing or swallowing [...] Acetaminophen comes as a tablet, chewable tablet, capsule, suspension or solution (liquid), extended-release (long-acting) tablet, and orally disintegrating tablet (tablet that dissolves quickly in the mouth), to take by mouth, with or without food. Acetaminophen is available without a prescription, but your doctor may prescribe acetaminophen to treat certain conditions. Follow the directions on the package or prescription label carefully, and ask your doctor or pharmacist to explain any part

  • Acetaminophen (Tylenol) Side Effects - Healthline

    Have you ever taken Tylenol to treat mild pain or reduce a fever? If so, then you’ve taken acetaminophen. It’s the generic name for the drug Tylenol. This drug is also sold under many other brand names and is an ingredient in many over-the-counter drugs. It’s quite possible that you’ve taken it and not even known. Read on to learn about this drug as well as its side effects, including tips on what to do if you experience side effects and how to avoid them altogether. [...] ## Acetaminophen and how it works You can use acetaminophen to relieve mild or moderate pain. This is usually pain from colds, sore throats, headaches, body or muscle aches, menstrual cramps, arthritis, or toothaches. You can also use it to reduce fever. It’s not fully known how acetaminophen works. It doesn’t reduce swelling or inflammation. Instead, it’s thought that it blocks the release of certain chemicals in your brain that signal the sensation of pain. [...] When used at correct dosages, acetaminophen is a safe and effective drug. It usually has no side effects. However, if you use too much, the side effects can be severe and even deadly. You need to know if any other drugs you take contain acetaminophen so that you don’t go over your daily limit. If acetaminophen is a part of your drug regimen, talk to your doctor to see what that limit is for you. ADVERTISEMENT Our top CBD picks Cornbread Hemp Full-Spectrum CBD Gummies

  • Tylenol oral: Uses, Side Effects, Interactions, Pictures, Warnings &amp

    Drugs & Medications Tylenol # Tylenol - Uses, Side Effects, and More ### Generic Name: acetaminophen This drug is used to treat mild to moderate pain (from headaches, menstrual periods, toothaches, backaches, osteoarthritis, or cold/flu aches and pains) and to reduce fever. View More Uses Side Effects Precautions Interactions Overdose Images Reviews (71) Warnings: [...] Take this product by mouth as directed. Follow all directions on the product package. If you have any questions, ask your doctor or pharmacist. There are many brands and forms of acetaminophen available. Read the dosing instructions carefully for each product because the amount of acetaminophen may be different between products. Do not take more acetaminophen than recommended. (See also Warning section.) [...] Do not use with any other drug containing acetaminophen without asking your doctor or pharmacist first. Acetaminophen is in many nonprescription and prescription medications (such as pain/fever drugs or cough-and-cold products). Check the labels on all your medicines to see if they contain acetaminophen, and ask your pharmacist if you are unsure.