Acetaminophen 500 Mg: Uses, Side Effects, and Drug Interactions

# Acetaminophen 500 mg Overview Acetaminophen 500 mg is a common pain reliever and fever reducer that you can buy without a prescription. People use it to treat headaches, muscle aches, backaches, minor arthritis pain, the common cold, toothaches, and fevers. It works by helping your body reduce pain signals and lower your temperature when you have a fever. Many people keep acetaminophen at home because it's an affordable and effective way to feel better when they have mild to moderate pain or a fever. When using acetaminophen, it's important to follow the directions on the package and never take more than recommended. Never use this medicine if you're allergic to acetaminophen, and be careful not to take other medicines that also contain acetaminophen, since taking too much can seriously damage your liver. Don't give acetaminophen to children under 2 years old without asking a doctor first. If you're pregnant, breastfeeding, have liver disease, or drink alcohol regularly, talk to your doctor before using it. Stop using acetaminophen and call a doctor if your pain lasts more than 10 days or if you develop a rash, as these could be signs of a more serious problem.