From the Research
For shoulder pain, apply Voltaren gel (diclofenac sodium 1%) to the affected shoulder area 4 times daily, using 2 grams (about the size of a quarter) per application, for a maximum total of 8 grams per day on any single joint. This recommendation is based on the available evidence, including a study from 1 that demonstrated the efficacy of topical diclofenac in reducing pain and improving function in patients with osteoarthritis of the knee, as well as soft tissue injuries involving the shoulder. The application instructions are as follows:
- Gently rub the gel into the skin until it disappears
- Wash your hands afterward unless they're the treatment area
- Don't cover the area with bandages or wraps
- Wait at least 10 minutes before showering or bathing Voltaren gel works by reducing inflammation and pain locally with minimal systemic absorption compared to oral NSAIDs. Most people experience relief within a few days, but you should limit use to 7 days for self-treatment unless directed otherwise by a healthcare provider. If you have heart disease, high blood pressure, kidney problems, or take blood thinners, consult your doctor before using this medication as it may not be appropriate for you. Some key points to consider when using Voltaren gel include:
- The potential for skin irritation, such as redness, itching, or rash, at the site of application
- The importance of avoiding application to open wounds or broken skin
- The need to consult a healthcare provider before using Voltaren gel in patients with a history of gastrointestinal bleeding or ulcers
- The potential for interactions with other medications, such as warfarin or aspirin. It's also worth noting that while Voltaren gel may be effective for shoulder pain, other treatment options, such as physical therapy or oral pain medications, may also be considered depending on the underlying cause and severity of the pain, as discussed in studies such as 2 and 3. However, based on the most recent and highest quality evidence, the recommended dosing for Voltaren gel for shoulder pain is 4 times daily, using 2 grams per application, for a maximum total of 8 grams per day on any single joint, as supported by studies such as 4 and 1.