Learn about the uses, dosage, side effects, and precautions of paracetamol (acetaminophen), a commonly used over-the-counter pain reliever and fever reducer. Paracetamol , [a] or acetaminophen, [b] is a non-opioid analgesic and antipyretic agent used to treat fever and mild to moderate pain. [14][15] It is a widely available over-the-counter drug sold generically or under various brand names, including Tylenol and Panadol. Paracetamol is the most widely used over-the-counter (OTC) medication for the treatment of fever and pain. It provides fast and effective relief from headaches, toothaches, backaches, menstrual pain, musculoskeletal pain associated with/without fever. Paracetamol decreases the intensity of pain signals to the brain and may also block the release of substances called prostaglandins that increases pain and body temperature. Paracetamol may show some side effects like stomach pain, nausea, and ... Paracetamol (acetaminophen) which is most commonly used medicinally that help to treat fever, reduce mild to moderate body pain, and reduce inflammation in your body.