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An antipyretic is a medicine used to reduce fever. Acetaminophen and some nonsteroidal anti-inflammatory drugs, or NSAIDs, are common antipyretics. These medicines can help lower body temperature and improve comfort, but they do not treat the infection or condition causing the fever. The safest choice depends on age, health history, dose, and other medicines.
read more about antipyretic ...Fever happens when the body raises its temperature set point during illness or inflammation. Antipyretics help lower that set point through effects on prostaglandin pathways and temperature regulation. Acetaminophen reduces fever and pain, while NSAIDs reduce fever, pain, and inflammation. The medicine should be dosed by label directions or a clinician's instructions.
Antipyretics are used when fever causes discomfort, body aches, headache, or trouble resting. They can be used during common infections when the patient can safely take the medicine. Fever in a very young infant, fever with stiff neck, confusion, breathing trouble, rash, dehydration, or persistent symptoms needs medical care. Fever reducers should not be used to hide worsening symptoms without checking the cause.
Common antipyretics include acetaminophen, ibuprofen, naproxen, and aspirin. Aspirin should not be given to children or teenagers with viral illness because of the risk of Reye syndrome. Some cold and flu products already contain acetaminophen or NSAIDs, so labels should be checked to avoid double dosing. Children need age- and weight-appropriate dosing.
Acetaminophen can cause liver injury if taken above the safe daily limit or combined with heavy alcohol use. NSAIDs can cause stomach bleeding, kidney problems, blood pressure changes, and allergy-like reactions in some patients. Aspirin can increase bleeding risk and is not safe for every age group. Seek care for severe allergic reaction, black stools, vomiting blood, severe belly pain, yellowing skin or eyes, or fever with serious symptoms.
Yes, acetaminophen is an antipyretic and analgesic. It can reduce fever and relieve mild to moderate pain.
Yes, NSAIDs such as ibuprofen and naproxen can reduce fever. They also reduce pain and inflammation.
No, antipyretics lower fever and improve comfort, but they do not cure infections. The cause of the fever still needs attention when symptoms are severe or persistent.
No, children and teenagers should not take aspirin for viral illness unless a clinician specifically directs it. Aspirin has been linked with Reye syndrome in this age group.
Fever Symptoms & Causes: What Is Considered a Fever? Cleveland Clinic. https://my.clevelandclinic.org/health/symptoms/10880-fever. Date Accessed June 3, 2026.
Physiology, Fever. StatPearls (NCBI Bookshelf). https://www.ncbi.nlm.nih.gov/books/NBK562334/. Date Accessed June 3, 2026.
Acetaminophen. StatPearls (NCBI Bookshelf). https://www.ncbi.nlm.nih.gov/books/NBK482369/. Date Accessed June 3, 2026.
Ibuprofen: MedlinePlus Drug Information. MedlinePlus. https://medlineplus.gov/druginfo/meds/a682159.html. Date Accessed June 3, 2026.
Reye's Syndrome: Symptoms and Causes. Mayo Clinic. https://www.mayoclinic.org/diseases-conditions/reyes-syndrome/symptoms-causes/syc-20377255. Date Accessed June 3, 2026.