Diclofenac Gel: What It Is, How It Works, and What Alternatives Exist

When you need fast, targeted relief for joint or muscle pain, Diclofenac gel, a topical nonsteroidal anti-inflammatory drug used to reduce pain and swelling in muscles and joints. Also known as diclofenac sodium gel, it delivers relief right where you need it—without the stomach issues that come with swallowing pills. Unlike oral painkillers that travel through your whole body, this gel works locally. You rub it on your knee, shoulder, or back, and it sinks into the skin to block pain signals at the source.

It’s commonly used for osteoarthritis, a degenerative joint disease that causes stiffness and pain, especially in older adults, and for minor sprains or strains. People who can’t take oral NSAIDs because of ulcers or kidney issues often turn to this gel as a safer alternative. It’s also popular among athletes and active older adults who want to stay mobile without relying on pills. But it’s not just about pain—it’s about function. If you can’t bend your knee or lift your arm because of inflammation, diclofenac gel can help you move again.

It’s not the only option, though. Other topical NSAIDs, medications applied directly to the skin to reduce inflammation and pain like ibuprofen gel or ketoprofen cream work similarly. Some people prefer capsaicin cream for nerve-related pain, while others use menthol or camphor for cooling relief. But diclofenac gel stands out because it’s backed by more clinical studies than most topical options. It’s not magic—it won’t fix a torn tendon—but for day-to-day aches from arthritis or overuse, it’s one of the most reliable tools in the medicine cabinet.

You’ll find it in pharmacies under brand names like Voltaren Gel, or as a generic. The key is using it right: apply only to clean, dry skin, don’t cover it with a bandage unless your doctor says to, and avoid getting it near your eyes or mouth. Most people use it three to four times a day, and relief often kicks in within a few days. If you don’t feel better after two weeks, it’s time to talk to your doctor—this isn’t a long-term fix for deep joint damage.

The posts below cover everything you need to know about managing pain and inflammation with medications like diclofenac gel. You’ll find comparisons with other topical treatments, tips on avoiding side effects, and how to tell if you’re better off trying something else. Whether you’re dealing with stiff knees, sore shoulders, or chronic back pain, there’s a practical guide here for you.