It is not safe to use more than 4 grams (4,000 milligrams) of acetaminophen in one day (24 hours), as this may increase the risk for serious liver problems. Find out how long it takes for Tylenol to relieve pain and reduce fever, plus key safety considerations for its use. acetaminophen, drug used in the treatment of mild to moderate pain, such as headache and pain in joints and muscles, and to reduce fever. The drug is marketed under several trade names, including Tylenol, Tempra, and Panadol, and outside the United States it is known as paracetamol. What do Tylenol products treat? Tylenol products are medicines you can buy without a prescription (over-the-counter or OTC) to treat pain (including arthritis pain), headache, and fever. Tylenol is a pain reliever and a fever reducer. Tylenol is used to reduce fever and relieve minor pain caused by conditions such as colds or flu, headache, muscle aches, arthritis, menstrual cramps and fevers. Tylenol (acetaminophen) is an analgesic (pain reliever) and antipyretic (fever reducer) used for treating pain and fever associated with many conditions. Tylenol is available in generic form and over-the-counter (OTC). Tylenol is a brand of medication, advertised for reducing pain, reducing fever, and relieving the symptoms of allergies, cold, cough, headache, and influenza. Explore a wide range of Tylenol formulations including rapid release gels, caplets, and extended-release options for effective pain management. Tylenol (acetaminophen) is widely used for pain relief and fever reduction, but correct dosing is critical to avoid liver damage. Adult dosages typically max out at 4,000 mg per day, with lower doses recommended for children based on weight and age. Discover how TYLENOL® pain relieving products & medicine can help you and your family feel better. Learn about symptoms, treatments, dosages and product info.