Is Voltaren gel dangerous? Voltaren (diclofenac) gel is safe for most people with arthritis to use for pain relief. However, in some situations, it causes dangerous side effects such as gastrointestinal bleeding and heart issues., Learn about diclofenac sodium topical gel (Voltaren gel) usage and dosing. Read the latest news and reviews about the drug as well as potential side effects and popular alternatives., Easy-to-read patient tips for Voltaren covering how it works, benefits, risks, and best practices., Shop Voltaren Topical Pain Relief Gel for Arthritis at Walgreens. Get it fast with Same Day Delivery or Pickup., Voltaren is a brand name for the drug diclofenac. This medication is a nonsteroidal anti-inflammatory (NSAID) drug, like aspirin or ibuprofen. Diclofenac is mainly used to treat arthritis pain in the joints. It is generally safe to use topical Voltaren gel, but there are package warnings for groups who should avoid using this product., Voltaren gel is avaialble over the counter. Learn more about how it works, where to buy it, and alternative topical medications..