The reason why you can't use Voltaren gel on your shoulder is mainly because the Voltaren gel hasn't been officially studied or even deemed proven safe and effective on large, deep joints like your shoulder, hip or spine.
Voltaren gel is only approved by the FDA for superficial joints like your wrists, hands, elbows, knees, ankles and your feet.
Your shoulder is a deep, complex ball and socket joint that is surrounded by thick muscle and tissue.
And the topical Voltaren gel only penetrates a short distance through your skin, which makes it less effective for deep seated joint or tendon inflammation.
And shoulder pain often stems from deep issues such as rotator cuff tears, labral tears or deep bursitis, which require different medical treatment than surface osteoarthritis does.
So you can use and place Voltaren gel on your shoulder, but it's less likely to work or help.
It won't hurt you to use Voltaren gel on your shoulder but it may not help.
Although some people do experience some temporary pain relief and reduced inflammation from use of Voltaren gel on their shoulder.
While official US package labeling historically designates Voltaren gel for smaller joints like hands and knees, it is frequently used or recommended off-label for localized shoulder strains and arthritis, though absorption over a larger joint may vary.
Using Voltaren gel on your shoulder can temporarily block pain signals and reduce inflammation in your joint, muscles or tendons.
How the Voltaren gel Works and What to Expect:
Pain Relief: The active NSAID ingredient penetrates the skin to lower prostaglandin production, easing aches and stiffness.
Application: Rub a measured amount gently into the painful area of the shoulder, making sure not to apply it to broken skin, rashes, or open wounds.
Limitations: The medicine may not absorb as deeply or effectively into a large, deep joint like the shoulder compared to a hand or knee.
Potential Risks and Side Effects of Voltaren gel include:
Skin Reactions: You might notice mild redness, itching, or dryness right where you put the gel.
Sun Sensitivity: Treated skin can burn or react more easily to sunlight, so keep the shoulder covered or protected.
Whole-Body Effects: Though much lower than taking oral pills, small amounts of the drug enter your bloodstream; caution is needed if you have a history of stomach ulcers, kidney issues, or heart disease.