aspirin vs diflunisal
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Side-by-side comparison of aspirin and diflunisal. Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.
minor Known Drug Interaction
Aspirin When diflunisal is administered with aspirin, its protein binding is reduced, although the clearance of free diflunisal is not altered. The clinical significance of this interaction is not known; however, as with other NSAIDs, concomitant administration of diflunisal tablets and aspirin is not generally recommended because of the potential of increased adverse effects. In normal volunteers, a small decrease in diflunisal levels was observed when multiple doses of diflunisal and aspirin were administered concomitantly.
Bayer, Ecotrin
Dolobid
Aspirin is a common medicine used to relieve minor pain. It can also be prescribed by your doctor for other uses.
Diflunisal is a medicine that can help with pain and swelling. It belongs to a class of drugs called NSAIDs.
Aspirin is used to temporarily relieve minor aches and pains. However, it works slowly. It will not quickly relieve headaches or other symptoms that need immediate relief. Ask your doctor about other uses for this medicine.
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.
Aspirin belongs to a class of drugs called NSAIDs and antiplatelets. It works by reducing substances in the body that cause pain and inflammation. It also helps to prevent blood clots.
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.
- • Upset stomach
- • Heartburn
- • Nausea
- • Vomiting
- • Upset stomach
- • Stomach pain
- • Diarrhea
- Fatigue 31,963
- Dyspnoea 27,179
- Nausea 26,579
- Diarrhoea 26,452
- Dizziness 22,390
- Nausea 66
- Fatigue 57
- Pain 50
- Drug Hypersensitivity 47
- Headache 45
No specific warnings noted.
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.
Ask your doctor for advice if you are pregnant or breastfeeding.
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.
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How to Read This aspirin vs diflunisal Comparison
aspirin is classified in the Antiplatelet / NSAID drug class, while diflunisal sits within the Nonsteroidal Anti-Inflammatory Drug (NSAID) class. Drugs from different classes work through distinct mechanisms, so a head-to-head comparison illustrates trade-offs rather than equivalence. 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, aspirin has 134,563 submissions while diflunisal has 265. Those figures reflect cumulative reporting volume, not per-patient risk, so older, widely dispensed drugs typically look worse on count alone. These two drugs have a known minor interaction flagged in FDA labeling, attributed to taking these two drugs together can change how they travel in the blood and may slightly lower the amount of diflunisal in your body. this combination also increases the risk of unwanted side effects.. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.
A table cannot represent individual circumstances. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This registry does not provide medical, treatment, substitution, or medication-change directions for aspirin or diflunisal.
Registry boundary: This comparison displays source-record fields and does not provide individualized medical direction.