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Medication safety · 7 min read

Tylenol vs Advil: which one should you reach for?

Tylenol and Advil sit side by side on every pharmacy shelf, and most of us grab whichever one is in the cupboard. They are not the same medicine, though. They work in different ways, they carry different risks, and the right pick depends on your symptoms, your health and the other medications you take. Here is how we explain the difference at the counter in Meadowlark, and when we would ask you to check with us before taking either one.

The short answer

Tylenol is a brand of acetaminophen. Advil (and Motrin) are brands of ibuprofen. Both ease pain and bring down a fever. Only ibuprofen also calms inflammation, which is the swelling and heat that comes with things like a sprain, sore muscles or a toothache.

That one difference drives most of the decision. When swelling is part of the problem, ibuprofen often makes more sense. When your stomach, kidneys or heart need protecting, acetaminophen is often the gentler choice. Generic versions contain the same active ingredient as the brand names, so you do not need to pay more for the label.

How acetaminophen (Tylenol) works

Acetaminophen works mainly in the brain to turn down pain signals and lower fever. It does not reduce inflammation. Its big advantage is that it is easy on the stomach, so it is a common choice for people who cannot take anti inflammatory medicines.

The main risk is the liver. Taking more than the daily maximum on the label can cause serious liver damage, and the risk goes up if you drink alcohol regularly or already have liver problems. The tricky part is that acetaminophen hides in many combination products, including a lot of cold and flu remedies and some prescription pain pills. If you take a cold medicine and Tylenol at the same time, you can double up without realizing it. Always read the active ingredients on every box.

How ibuprofen (Advil) works

Ibuprofen belongs to a group called NSAIDs, short for non steroidal anti inflammatory drugs. Naproxen (Aleve) is in the same family. NSAIDs block the chemicals that cause pain, fever and swelling, which is why they tend to work well for injuries, period cramps, dental pain and achy joints.

The trade off is that NSAIDs can irritate the stomach lining and affect the kidneys and blood pressure. Taking ibuprofen with food or milk helps with stomach upset. Ibuprofen and naproxen should not be taken together, since they are the same type of medicine.

Which one fits your symptoms?

This is a general guide only. Your pharmacist can tailor it to you.

  • Fever, aches from a cold or flu: either one can help. Acetaminophen is often the first pick if you have stomach or kidney concerns.
  • Sprains, strains and sore muscles: ibuprofen is often preferred because swelling is part of the pain.
  • Period cramps: NSAIDs like ibuprofen are commonly used because they target the chemicals behind the cramping.
  • Toothache: ibuprofen is often used while you wait to see a dentist, if it is safe for you.
  • Headaches: both can work. Our headache and migraine guide covers which option suits tension headaches versus migraines, and how to avoid rebound headaches.
  • Sensitive stomach, kidney disease or heart concerns: acetaminophen is usually the safer place to start, but ask us first.

Who should check with a pharmacist first

Over the counter does not mean risk free. Please talk to us or your doctor before taking ibuprofen if any of these apply to you:

  • You have had a stomach ulcer or stomach bleeding
  • You have kidney disease, heart disease, heart failure or high blood pressure
  • You take a blood thinner, or medicine for blood pressure or depression
  • You have asthma that has flared after taking ASA or another NSAID
  • You are pregnant or breastfeeding. Ibuprofen is generally not recommended in the later part of pregnancy
  • You are older and take several medications

Check with us before taking acetaminophen if you have liver disease, drink alcohol most days, or take other products that might already contain acetaminophen. If you take several medicines every day, a medication review with your pharmacist is a good way to sort out which pain reliever fits safely with everything else.

Can you take Tylenol and Advil together?

This is one of the most common questions we get. Because acetaminophen and ibuprofen work in different ways, many healthy adults can use both, either at the same time or alternating between them, as long as each one stays within its own label directions and daily limit. Some people find this helps with pain that one medicine alone does not cover.

That said, combining them is not right for everyone. If you have any of the conditions listed above, or you are not sure how to space the doses, ask your pharmacist before you start. Alternating doses is easy to mix up, especially at night, so write down the time and the medicine each time you take something.

Children and teens

Both acetaminophen and ibuprofen come in children's liquids and chewables, and the dose depends on the child's weight, not just age. Use the measuring device that comes with the product, never a kitchen spoon. Never give ASA (Aspirin) to children or teenagers with a fever or viral illness, because of the risk of a rare but serious condition called Reye syndrome.

Please do not alternate medicines for a child without talking to a pharmacist or doctor first. Our children's medication dosing guide walks through weight based dosing and the mistakes we see most often.

Reading the label

Every box lists the active ingredient, the strength, how often you can take it and the most you can take in a day. A few habits keep you safe:

  • Check the active ingredient, not just the brand. Store brands and name brands are often the same medicine.
  • Look for acetaminophen in combination cold, flu and sleep products before adding Tylenol.
  • Do not take more than one NSAID at a time, such as ibuprofen with naproxen or ASA, unless your doctor told you to.
  • Follow the label limits on how many days to use it. Most labels tell you to stop and get checked if pain lasts more than a few days or a fever does not settle.

When to get medical care

Pain relievers treat symptoms. They do not fix the cause. Get checked by a doctor if pain is severe or keeps coming back, if a fever is very high or will not come down, or if you notice black stools, vomiting blood, yellowing skin or eyes, or a rash after taking a pain reliever. For anything that feels like an emergency, call 911. If you are not sure where to go, Health Link at 811 can help.

If cold and flu season is what has you reaching for the medicine cabinet, read our guide to choosing cold and flu medicine next.

Ask us before you buy

You never need an appointment to ask a pharmacist a question. Call (780) 443-0202 or stop by Acme Drug Mart at Unit 103, 15508 87 Ave NW in Meadowlark. Open Monday 9 to 5, Tuesday through Friday 9 to 6, and Saturday 11 to 5. Tell us what you are treating and what else you take, and we will help you pick the right option. You can also learn more about what our prescribing pharmacists can do for you.

Common questions

Tylenol vs Advil FAQ.

What is the difference between Tylenol and Advil?

Tylenol is acetaminophen and Advil is ibuprofen. Both relieve pain and lower fever. Ibuprofen also reduces inflammation, so it is often used for sprains, cramps and dental pain. Acetaminophen is easier on the stomach but can harm the liver if you take more than the label allows. Ask your pharmacist which one suits your health and medications.

Can I take Tylenol and Advil together?

Many healthy adults can take acetaminophen and ibuprofen together or alternate them because they work differently, as long as each stays within its own label limits. It is not right for everyone, including people with kidney, stomach or heart problems. Check with your pharmacist before combining them, and before alternating them for a child.

Which is better for a fever, Tylenol or Advil?

Both can bring down a fever. The better choice depends on your age, health and other medications. Acetaminophen is often preferred for people with stomach, kidney or heart concerns. For children, dose by weight and use the device that comes with the product. Never give ASA to a child or teen with a fever.

Who should not take ibuprofen?

Talk to a pharmacist or doctor first if you have had a stomach ulcer or bleeding, have kidney disease, heart disease or high blood pressure, take a blood thinner, have asthma that reacts to NSAIDs, or are pregnant. Ibuprofen is generally not recommended in the later part of pregnancy.

Not sure which one to take?

Ask your pharmacist before you reach for the bottle.

Tell us your symptoms and the medicines you already take, and we will help you choose safely. Come see us at Acme Drug Mart in Meadowlark.