Comparing Aspirin vs Diclofenac
| Aspirin | Diclofenac |
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| Aspirin | Diclofenac |
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Prescription and OTC
Aspirin relieves pain and inflammation and helps to thin the blood. It is used to treat and prevent a wide range of different conditions. Higher dosages are associated with stomach irritation and... View more |
Prescription only
Diclofenac is an effective medicine for relieving pain but may be associated with an increased risk of cardiovascular and gastrointestinal side effects compared with some other NSAIDs. Prescribed... View more |
Related suggestions Rheumatoid Arthritis
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| More about Aspirin | More about Diclofenac | ||||||||||||||||
| Ratings & Reviews | |||||||||||||||||
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Aspirin has an average rating of 7.9 out of 10 from a total of 50 ratings on Drugs.com. 72% of reviewers reported a positive effect, while 13% reported a negative effect. |
Diclofenac has an average rating of 7.4 out of 10 from a total of 692 ratings on Drugs.com. 69% of reviewers reported a positive effect, while 20% reported a negative effect. |
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| Drug Class | |||||||||||||||||
| Side Effects | |||||||||||||||||
| Generic Availability | |||||||||||||||||
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Lower cost generic |
Lower cost generic |
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| Pricing and Coupons * Prices are without insurance | |||||||||||||||||
View all Aspirin prices |
View all Diclofenac prices |
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| Dosage Forms Available | |||||||||||||||||
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| Brand Names | |||||||||||||||||
| Acetylsalicylic Acid, Acuprin 81, Arthritis Foundation Pain Reliever, Arthritis Pain, Ascriptin, Ascriptin Enteric, Ascriptin Maximum Strength, Aspergum, Aspi-Cor, Aspir 81, Aspir-Low, Aspirin Lite Coat, Aspirin Low Strength, Aspiritab, Aspirtab, Bayer Advanced Aspirin, Bayer Aspirin, Bayer Aspirin Extra Strength Plus, Bayer Aspirin Regimen, Bayer Aspirin with Heart Advantage, Bayer Children's Aspirin, Bayer Women's Aspirin With Calcium, Buffasal, Buffered Aspirin, Bufferin, Bufferin Arthritis Strength, Bufferin Extra Strength, Bufferin Low Dose, Buffex, Durlaza, Easprin, Ecotrin, Ecotrin Adult Low Strength, Ecotrin Maximum Strength, Ecpirin, Empirin, Entaprin, Entercote, Extra Strength Bayer, Fasprin, Genacote, Gennin-FC, Genprin, Halfprin, Heartline, Medi-Seltzer, Migralex, Miniprin, Norwich Aspirin, St. Joseph 81 mg Aspirin Enteric Safety-Coated, St. Joseph 81 mg Chewable Aspirin, Tri-Buffered Aspirin, Vazalore View more | Cambia, Cataflam, Lofena, Voltaren, Zipsor, Zorvolex | ||||||||||||||||
| Half Life The half-life of a drug is the time taken for the plasma concentration of a drug to reduce to half its original value. | |||||||||||||||||
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10 hours |
1.8 hours |
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| CSA Schedule ** View glossary of terms | |||||||||||||||||
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Not a controlled drug
Is not subject to the Controlled Substances Act. |
Not a controlled drug
Is not subject to the Controlled Substances Act. |
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| Pregnancy Category | |||||||||||||||||
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Category N
Not classified
See the full pregnancy warnings document. |
Category D
Positive evidence of risk
See the full pregnancy warnings document. |
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| Drug Interactions | |||||||||||||||||
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A total of 362 drugs are known to interact with Aspirin:
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A total of 428 drugs are known to interact with Diclofenac:
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| Alcohol/Food/Lifestyle Interactions | |||||||||||||||||
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| Disease Interactions | |||||||||||||||||
| First Approval Date | |||||||||||||||||
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June 25, 1965 |
July 28, 1988 |
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| WADA Class View World Anti-Doping Agency classifications. | |||||||||||||||||
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N/A |
N/A |
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| More Information | |||||||||||||||||
| Patient resources | |||||||||||||||||
| Professional Resources | |||||||||||||||||
| Related Treatment Guide | |||||||||||||||||
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** The Controlled Substances Act (CSA) schedule information displayed applies to substances regulated under federal law. There may be variations in CSA schedules between individual states.
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.