Acetaminophen is a pain reliever and a fever reducer. Aspirin is a salicylate (sa-LIS-il-ATE). Caffeine is a central nervous system stimulant.

Acetaminophen, aspirin, and caffeine is a combination medicine used to treat pain caused by tension headaches, migraine headaches, muscle aches, menstrual cramps, arthritis, toothaches, the common cold, or nasal congestion.

Do not use aspirin for heart or blood vessel conditions unless your doctor tells you to.

Acetaminophen, aspirin, and caffeine may also be used for purposes not listed in this medication guide.

Do not give this medicine to a child or teenager with a fever, flu symptoms, or chicken pox. Aspirin can cause Reye's syndrome, a serious and sometimes fatal condition in children.

You should not use this medicine if you are allergic to acetaminophen (Tylenol), aspirin, caffeine, or any NSAIDs (diclofenac, ibuprofen, indomethacin, meloxicam, naproxen, Advil, Aleve, Motrin, and others).

Aspirin may cause stomach or intestinal bleeding, which can be fatal. These conditions can occur without warning while you are taking this medicine.

Ask a doctor or pharmacist if this medicine is safe to use if you have ever had:

• liver disease, cirrhosis, a history of alcoholism, or if you drink more than 3 alcoholic beverages per day;
• asthma or seasonal allergies;
• fever with a stiff neck;
• stomach ulcer, stomach or intestinal bleeding, ulcerative colitis;
• bleeding problems;
• kidney disease; or
• if you use medicine to treat glaucoma or prevent blood clots.

If you take acetaminophen, aspirin, and caffeine to treat headache pain, seek medical attention if you have:

• a headache so bad you have to lie down;
• a headache that causes vomiting;
• what feels like the worst headache you've ever had;
• a headache that seems different from your usual headaches;
• a headache every day;
• a headache after coughing, bending, exercising, or head injury;
• if you have never had migraines diagnosed by a doctor; or
• if you are having your first headache after age 50.

Ask a doctor before using this medicine if you are pregnant or breastfeeding.

Taking aspirin during late pregnancy may cause bleeding in the mother or the baby during delivery. Ask a doctor before using this medicine if you are pregnant.

Do not give this medicine to anyone younger than 18 years old without medical advice.

Use Excedrin Migraine Relief (Oral) exactly as directed on the label, or as prescribed by your doctor. Do not use in larger or smaller amounts or for longer than recommended.

Get emergency medical help if you have signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

In rare cases, acetaminophen may cause a severe skin reaction that can be fatal. This could occur even if you have taken acetaminophen in the past and had no reaction. Stop taking this medicine and call your doctor right away if you have skin redness or a rash that spreads and causes blistering and peeling. If you have this type of reaction, you should never again take any medicine that contains acetaminophen.

Stop using this medicine and call your doctor at once if you have:

• severe anxiety, agitation, confusion, panic;
• easy bruising or bleeding;
• a light-headed feeling, like you might pass out;
• dehydration symptoms--feeling very thirsty or hot, being unable to urinate, heavy sweating, or hot and dry skin;
• symptoms of stomach bleeding--bloody or tarry stools, coughing up blood or vomit that looks like coffee grounds;
• high potassium--nausea, weakness, tingly feeling, chest pain, irregular heartbeats, loss of movement; or
• liver problems--nausea, upper stomach pain, itching, loss of appetite, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes).

Common side effects may include:

• upset stomach, heartburn;
• depressed mood, feeling anxious or restless; or
• sleep problems (insomnia).

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Avoid drinking alcohol. It may increase your risk of liver damage or stomach bleeding.

Ask a doctor or pharmacist before using other medicines for pain, fever, swelling, or cold/flu symptoms. They may contain ingredients similar to acetaminophen or aspirin (such as ibuprofen, ketoprofen, or naproxen).

Avoid coffee, tea, cola, energy drinks or other sources of caffeine while taking this medication. They can add to the side effects of the caffeine in the medication.