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). Learn about acetaminophen (Tylenol) usage and dosing. Read the latest news and reviews about the drug as well as potential side effects and popular alternatives. 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. 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. Medscape - Pain, fever-specific dosing for Tylenol (acetaminophen), frequency-based adverse effects, comprehensive interactions, contraindications, pregnancy & lactation schedules, and cost. Discover how TYLENOL® pain relieving products & medicine can help you and your family feel better. Learn about symptoms, treatments, dosages and product info. Acetaminophen is used to relieve mild to moderate pain and to reduce fever. Acetaminophen is in a class of medications called analgesics (pain relievers) and antipyretics (fever reducers). It works by changing the way the body senses pain and by cooling the body. How should this medicine be used? Tylenol is a brand of medication, advertised for reducing pain, reducing fever, and relieving the symptoms of allergies, cold, cough, headache, and influenza. 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. Acetaminophen (Tylenol) can help reduce a fever and treat mild to moderate pain.