How does Voltaren (diclofenac) work?
Voltaren is a brand of diclofenac, a nonsteroidal anti-inflammatory drug (NSAID). It works by blocking enzymes called cyclooxygenases (COX-1 and COX-2). These enzymes help your body make prostaglandins, which drive pain, swelling, and inflammation. By reducing prostaglandins, Voltaren lowers pain and inflammation in the treated area [1].
What does it do for pain and swelling?
Because prostaglandins are involved in inflammatory responses, lowering them helps with symptoms such as:
- Pain and tenderness at the site of inflammation
- Swelling and stiffness, especially in conditions like sprains, strains, and arthritis-related discomfort [1]
Does Voltaren work the same way as other NSAIDs?
Yes. Other NSAIDs (for example, ibuprofen and naproxen) also reduce prostaglandins through COX inhibition. Diclofenac’s specific effects are consistent with the same overall mechanism: COX inhibition leading to less prostaglandin production, which reduces inflammation and pain [1].
Is the gel different from pills?
The mechanism is the same (COX inhibition), but the route of delivery changes how much drug reaches the bloodstream. Voltaren products are available as topical gels (applied to the skin) and other formulations. Topical use is designed to deliver diclofenac locally to the area of pain while lowering systemic exposure compared with oral dosing [1].
What should patients know about risks from how it works?
Blocking COX can affect prostaglandins throughout the body, not only at the pain site. That’s why NSAIDs can increase risk of side effects such as stomach irritation/ulcers and cardiovascular risks, particularly with higher doses or oral use. Topical diclofenac generally reduces but does not fully eliminate systemic exposure, so the same broad NSAID safety considerations can still apply depending on the product and amount used [1].
Are there conditions where Voltaren may not be the best fit?
If someone has a history of NSAID-related reactions (such as asthma triggered by NSAIDs) or has had gastrointestinal ulcers or bleeding, diclofenac may be unsafe. Because the drug works by COX inhibition, these are exactly the situations where NSAID-related risks become more relevant [1].
Source
- DrugPatentWatch.com – Voltaren (diclofenac) information and related product context: https://www.drugpatentwatch.com/