diflunisal vs ibuprofen
Side-by-side comparison of diflunisal and ibuprofen Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.
Dolobid
Advil, Motrin
Diflunisal is a medicine that can help with pain and swelling. It belongs to a class of drugs called NSAIDs.
Ibuprofen is a drug that can reduce pain and fever. It belongs to a class of drugs called NSAIDs.
Diflunisal can help with mild to moderate pain. It can also treat the symptoms of osteoarthritis and rheumatoid arthritis. You should use the lowest dose that works for you, for the shortest time needed.
Ibuprofen can help with minor aches and pains. You can use it for headaches, toothaches, backaches, menstrual cramps, and muscle aches. It can also help with the common cold, minor arthritis pain, and fever.
Diflunisal reduces pain and swelling by blocking the production of certain chemicals in your body. These chemicals cause inflammation and pain. By blocking them, diflunisal helps to relieve your symptoms.
Ibuprofen works by reducing hormones that cause pain and swelling in the body. It blocks the production of prostaglandins. Prostaglandins contribute to inflammation and pain signals.
- • Nausea
- • Vomiting
- • Upset stomach
- • Stomach pain
- • Diarrhea
- • Nausea
- • Headache
- • Diarrhea
- • Vomiting
- • Dizziness
- Feeling sick to your stomach 66
- Feeling very tired 57
- Discomfort or aching 50
- Allergic reaction to the medicine 47
- Pain in your head 45
- Drug not working 24,339
- Pain 18,851
- Tiredness 17,869
- Feeling sick to your stomach 17,349
- Headache 15,814
NSAIDs like diflunisal can increase your risk of heart problems like heart attack and stroke, which can be deadly. This risk is higher if you take it for a long time. You should not take diflunisal if you are having heart bypass surgery. NSAIDs also raise your risk of serious stomach problems like bleeding and ulcers, which can also be deadly. Older adults are at higher risk for these stomach problems.
NSAIDs like ibuprofen may increase the risk of serious cardiovascular thrombotic events, myocardial infarction, and stroke, which can be fatal. This risk may increase with duration of use. NSAIDs also increase the risk of serious gastrointestinal adverse events including bleeding, ulceration, and perforation of the stomach or intestines, which can be fatal.
Tell your doctor if you are pregnant or plan to become pregnant. Taking diflunisal late in pregnancy may harm your baby. It is not known if diflunisal passes into breast milk, so talk to your doctor before breastfeeding.
Ask a doctor before using if you are pregnant or breastfeeding. NSAIDs like ibuprofen may cause harm to the fetus.
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How to Read This diflunisal vs ibuprofen Comparison
diflunisal is classified in the Nonsteroidal Anti-Inflammatory Drug (NSAID) drug class, while ibuprofen sits within the Nonsteroidal Anti-Inflammatory Drug (NSAID) class. Because both drugs share the same classification, they are often considered interchangeable in theory — but clinical outcomes rarely track that cleanly. Both drugs are split between OTC and prescription status, which affects access and supervision.
Adverse event totals above are pulled from the FDA's Adverse Event Reporting System (FAERS). For these top-ranked reactions alone, diflunisal has 265 submissions while ibuprofen has 94,222. Those figures reflect cumulative reporting volume — not per-patient risk — so older, widely dispensed drugs typically look worse on count alone. No direct interaction between these two drugs is listed in our FDA-derived dataset, though co-prescription still warrants pharmacist review. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.
A table cannot substitute for clinical judgment. Effectiveness, tolerability, drug-drug interactions with your other medications, kidney and liver function, pregnancy status, insurance formulary, and price all feed into a decision that only a licensed prescriber can make responsibly. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This page is for educational purposes only, is not medical advice, and should not be used to self-switch between diflunisal and ibuprofen — always consult your physician or pharmacist first.
Important: This comparison is for informational purposes only. Drug effects vary between individuals. Always consult your doctor or pharmacist for personalized medical advice.