Diclofenac is a non‑steroidal anti‑inflammatory drug (NSAID) that works by reducing inflammation and pain. It’s available in several formulations—oral tablets, oral solutions, topical gels/creams, and injectable solutions—so it can be tailored to the type of pain or condition being treated.
Common uses
| Condition | Typical Diclofenac Use |
|-----------|------------------------|
| Arthritis (osteoarthritis, rheumatoid arthritis, juvenile idiopathic arthritis) | Oral or topical to reduce joint pain, swelling, and stiffness |
| Acute musculoskeletal pain (sprains, strains, back pain, muscle aches) | Oral tablets or topical gel for short‑term relief |
| Post‑operative pain | Oral or injectable formulations for moderate to severe pain after surgery |
| Gout attacks | Oral or injectable, often combined with other medications to manage inflammation |
| Dental pain (e.g., after extractions) | Oral tablets or mouth rinse preparations |
| Inflammatory disorders (e.g., tendinitis, bursitis) | Oral or topical depending on location |
| Dermatologic conditions (e.g., certain inflammatory skin conditions) | Topical gels/creams applied directly to the affected area |
How it works
Diclofenac blocks the cyclo‑oxygenase (COX‑1 and COX‑2) enzymes, which are key in the production of prostaglandins—chemicals that mediate pain, fever, and inflammation. By reducing prostaglandin levels, it lessens pain signals and dampens the inflammatory response.
Important points to keep in mind
- Dosage and duration: The specific dose depends on the formulation, the condition being treated, and individual factors such as age, kidney or liver function, and other medications. It’s always best to follow a healthcare professional’s instructions.
- Side‑effects: Common side‑effects include stomach upset, nausea, and dizziness. More serious risks involve gastrointestinal bleeding, cardiovascular events, kidney damage, and allergic reactions. Topical forms generally have fewer systemic side‑effects but can still irritate the skin in sensitive individuals.
- Drug interactions: Diclofenac can interact with many drugs (e.g., blood thinners, other NSAIDs, certain blood pressure medications, and some antidepressants). Discuss your full medication list with your provider.
- Contraindications: Avoid if you have a known allergy to NSAIDs, severe liver or kidney disease, recent heart attack or stroke, uncontrolled high blood pressure, or a history of gastrointestinal ulcers.
- Pregnancy and breastfeeding: Use only if the potential benefit justifies the risk; consult a healthcare professional. Some formulations (especially systemic) are not recommended during pregnancy’s third trimester.
When to seek medical help
- Persistent or worsening pain despite medication
- Severe stomach pain, black/tarry stools, or vomiting blood
- Unusual swelling, shortness of breath, chest pain, or new‑onset headaches
- Signs of an allergic reaction (rash, itching, swelling of lips/face, trouble breathing)
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Bottom line: Diclofenac is widely used to treat various types of pain and inflammation, from arthritis to acute injuries. Its effectiveness is balanced by a need to monitor for side‑effects and interactions, so it’s usually prescribed or recommended under medical guidance. If you’re considering diclofenac—whether over‑the‑counter or prescription—talk with a pharmacist or clinician to ensure it’s the right option for you and to get personalized dosing and safety advice.