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diclofenac vs etodolac

Side-by-side comparison of diclofenac and etodolac Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.

Drug Class
diclofenac Nonsteroidal Anti-Inflammatory Drug (NSAID)
etodolac Nonsteroidal Anti-Inflammatory Drug (NSAID)
Type
diclofenac Over-the-Counter
etodolac Prescription
Summary
diclofenac

Diclofenac is a gel that helps with arthritis pain in your hands, wrists, elbows, feet, ankles, or knees. It belongs to a class of drugs called NSAIDs.

etodolac

Etodolac is a pain reliever and anti-inflammatory medicine. It helps reduce pain, swelling, and stiffness caused by arthritis and other conditions.

What It Treats
diclofenac

This medicine temporarily relieves arthritis pain. It is only for pain in your hands, wrists, elbows, feet, ankles, or knees. It may take up to 7 days to start working. If you still have pain after 7 days, stop using it.

etodolac

Etodolac treats the symptoms of osteoarthritis and rheumatoid arthritis. It can help with pain and swelling in your joints. Etodolac is also used for short-term relief of acute pain.

How It Works
diclofenac

Diclofenac is an NSAID. It reduces pain and swelling by blocking substances in the body that cause inflammation.

etodolac

Etodolac is an NSAID, which stands for Nonsteroidal Anti-Inflammatory Drug. It works by reducing substances in the body that cause pain and inflammation. It can help to reduce fever as well.

Common Side Effects
diclofenac
  • Pain
  • Headache
etodolac
  • Upset stomach
  • Constipation
  • Diarrhea
  • Gas
  • Heartburn
FAERS Reports
diclofenac
  • Medicine not working 13,689
  • Pain 12,281
  • Tiredness 11,317
  • Rheumatoid arthritis 9,240
  • Rash 8,747
etodolac
  • The medicine is not working 362
  • Pain 350
  • Feeling sick to your stomach 290
  • Joint pain 284
  • Tiredness 273
Serious Warnings
diclofenac

There are no boxed warnings in the provided data.

etodolac

NSAIDs like etodolac can increase your risk of heart attack or stroke, which can be fatal. This risk may happen early in treatment and increases with longer use. You should not take etodolac if you are having heart bypass surgery. NSAIDs also increase the risk of serious stomach problems like bleeding and ulcers, which can be fatal. Older adults are at higher risk for these stomach problems.

Pregnancy
diclofenac

There is no information about pregnancy or breastfeeding in the provided data.

etodolac

Talk to your doctor if you are pregnant, plan to become pregnant, or are breastfeeding. Etodolac may harm your unborn baby. It is not known if etodolac passes into breast milk.

Also Compare — Nearby Drugs

How to Read This diclofenac vs etodolac Comparison

diclofenac is classified in the Nonsteroidal Anti-Inflammatory Drug (NSAID) drug class, while etodolac 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, diclofenac has 55,274 submissions while etodolac has 1,559. 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 diclofenac and etodolac — 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.