The comparison of ibuprofen vs. Naprosyn is largely dependent upon how often you want to take your medicines and what other drugs you may be taking.

When you have pain from such ailments as the common headache, the last thing you want to do is an in-depth study of ibuprofen vs. Naprosyn to decide which is best to take. Thankfully, you don’t have labor too long over the the decision, because they both relieve headaches, and they both have a lower risk of bleeding than other non-steroidal anti-inflammatory drugs, commonly known by the acronym “NSAIDs.”

Ibuprofen vs. Naprosyn

Ibuprofen (Motrin, Advil) and Naprosyn (Aleve) are both available under generic/store-brand formulations, as well as their original brand names. Although some people do report that generics work differently for them than brand drugs, the FDA requires generic formulations to perform similarly to brands. They acknowledge a possible slight variation at times, just as between batches of the brand medicine, but the FDA monitors them closely. Any undesired effects should be reported to the FDA.

One decision-maker when it comes to ibuprofen vs. Naprosyn may be how long the pain relief is expected to last. Naprosyn lasts longer than ibuprofen. The half-life of ibuprofen is two to four hours, while Naprosyn is 12 to 17 hours. (Half-life is when half the original dose is still circulating in your bloodstream.) In layman’s terms, you take ibuprofen once every four to six hours, while Naprosyn is only repeated once every eight to 12 hours.

According to iodine.com, ibuprofen relieves pain, fever, and swelling. Naprosyn is similar, relieving pain, fever, and inflammation. Ibuprofen is available for children, but Naprosyn is not.

Drug Interactions

“Be careful not to take more than one product that contains an NSAID at a time,” says Karen M. Mahoney, M.D., deputy director of Food and Drug Administration (FDA) Division of Nonprescription Drug Products.

Taking two NSAIDs together can increase the risk of side effects and serious adverse events. For that reason, it can be wise to only have one NSAID in your medicine chest. It would avoid you reaching for the wrong bottle when you need a second dose.

Always discuss the use of OTC pain relievers with your physician, so you know what you can and cannot use with other medications.

Ibuprofen can interfere with the antiplatelet effect of aspirin, which is a serious warning for those on low-dose aspirin program. Timing is key. If you took the ibuprofen first, wait at least 30 minutes after taking aspirin to take the ibuprofen. If you took the ibuprofen first, you need to wait 8 hours, according to the FDA. (Timing may vary if you’re using enteric-coated aspirin.)

Another ibuprofen interaction involves the use of alcohol. That combination can increase the risk of gastrointestinal bleeding.

Naprosyn comes with a list of drugs it can interact with, which means if you choose Naprosyn as your go-to pain reliever, you must discuss its use with any physician prescribing you drugs.

It may interfere with:

  • Antidepressents
  • Blood thinners
  • Blood-pressure medications
  • Diuretics
  • Heart medications
  • Lithium
  • Methotrexate
  • Probenecid
  • Steroids

Risks of Ibuprofen vs. Naprosyn

Both ibuprofen and Naprosyn have a lower risk of bleeding compared to other NSAIDs, but both should be taken with food or milk to reduce the risk of stomach upset. Risks are similar, and neither should be taken during pregnancy. People who have cardiovascular disease, particularly those who recently had a heart attack or cardiac bypass surgery, are at the greatest risk for cardiovascular adverse events associated with NSAIDs, warns the FDA. Physicians frequently recommend acetaminophen as an OTC pain reliever for patients with cardiovascular issues.

How Do NSAIDs Work?

Choosing ibuprofen vs. Naprosyn has nothing to do with the way they work in the body because they both work by inhibiting the COX enzymes:

“Prostaglandins are produced within the body’s cells by the enzyme cyclooxygenase (COX),” explains medicinenet.com. “There are two COX enzymes, COX-1 and COX-2. Both enzymes produce prostaglandins that promote inflammation, pain, and fever. However, only COX-1 produces prostaglandins that support platelets and protect the stomach. NSAIDs block the COX enzymes and reduce prostaglandins throughout the body. As a consequence, ongoing inflammation, pain, and fever are reduced. Since the prostaglandins that protect the stomach and support platelets and blood clotting also are reduced, NSAIDs can cause ulcers in the stomach and promote bleeding.”

This bleeding risk is why some physicians prefer to recommend acetaminophen.

A 1984 study by The Manchester General Practitioner Group looked at 226 patients with osteoarthritis. The participants were randomly assigned to take either Naprosyn or ibuprofen. Both drugs reduced stiffness, pain, and overall disease severity. However, Naprosyn was found to be superior to ibuprofen in relieving resting pain, movement pain, night pain, and interference with daily activities. The study found 45 patients had side-effects (mainly mild gastrointestinal problems) from Naprosyn and 30 with ibuprofen (11 were patients who had side effects on both drugs). One patient had a gastrointestinal bleed while taking Naprosyn. Overall treatment preference significantly favored Naprosyn, concluded the researchers.

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