Voltaren vs Celebrex: side-by-side comparison
Voltaren (Diclofenac) and Celebrex (Celecoxib) both belong to the Pain Relief Medications class. They share clinical context but use different active ingredients. The choice between them depends on mechanism nuances, side-effect profile and individual response.
| Property | Voltaren | Celebrex |
|---|---|---|
| Active ingredient | Diclofenac | Celecoxib |
| Manufacturer | Novartis | Pfizer |
| Class | Pain Relief Medications | Pain Relief Medications |
| Strengths | 25mg, 50mg, 75mg, 100mg | 50mg, 100mg, 200mg, 400mg |
| Forms | tablet, delayed-release tablet, topical gel, suppository | capsule |
What's the same
Voltaren and Celebrex both belong to the Pain Relief Medications class and are used for partially overlapping indications. The active ingredients — Diclofenac vs Celecoxib — share the same therapeutic approach, so many safety and management points carry across both.
Key differences
Meaningful differences are in active ingredient (Diclofenac vs Celecoxib), strengths (25mg, 50mg, 75mg, 100mg vs 50mg, 100mg, 200mg, 400mg), forms (tablet, delayed-release tablet, topical gel, suppository vs capsule), and the mechanism, half-life and side-effect nuances that distinguish members of the class.
Mechanism and action
Voltaren: Diclofenac reversibly inhibits cyclooxygenase enzymes COX-1 and COX-2, with somewhat greater selectivity for COX-2 than ibuprofen and naproxen. Celebrex: Celecoxib selectively inhibits COX-2, the inducible isoform of cyclooxygenase upregulated at sites of inflammation, while sparing the constitutive COX-1 that maintains gastric mucosal integrity and platelet aggregation.
When Voltaren is preferred
Voltaren is approved in adults for the treatment of osteoarthritis, rheumatoid arthritis, ankylosing spondylitis, acute musculoskeletal pain, post-surgical pain, primary dysmenorrhoea, acute migraine and ureteric colic.
When Celebrex is preferred
Celebrex is approved in adults for the treatment of osteoarthritis, rheumatoid arthritis, juvenile idiopathic arthritis (in some markets), ankylosing spondylitis, primary dysmenorrhoea and acute pain.
Frequently asked questions
Is Voltaren or Celebrex better? ▾
There is no single answer. Voltaren and Celebrex both belong to the Pain Relief Medications class but differ in mechanism nuances, half-life and side-effect profile. Preference depends on the patient, the prescriber and prior response to other therapies.
Can I switch from Voltaren to Celebrex? ▾
Switching within the Pain Relief Medications class is done under supervision, typically using equivalent doses and a follow-up period to confirm response and tolerance. It is not a self-directed decision.
Do Voltaren and Celebrex have the same side effects? ▾
They share many of the Pain Relief Medications class side effects, with differences from mechanism and dose. Each medication's prescribing information lists specifics.
More Voltaren comparisons
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.