Voltaren oral tablets are used to treat mild to moderate pain, or signs and symptoms of osteoarthritis or rheumatoid arthritis. Voltaren is also used to treat ankylosing spondylitis. To use the oral solution: Open the packet of medicine right before you use it. Empty the contents of the packet into a cup with 1 to 2 ounces (30 to 60 milliliters [mL]) of water. Do not use any liquid other than water for mixing the medicine. Mix well and drink it immediately on an empty stomach. Find patient medical information for Diclofenac (Cataflam, Voltaren, others) on WebMD including its uses, side effects and safety, interactions, pictures, warnings, and user ratings Browse pain relief tablets for arthritis and joint discomfort in various formulations. Key takeaways Diclofenac is the generic name for Voltaren, available as oral tablets, topical gel, and patches. Brand-name Voltaren tablets are discontinued in the U.S., but generic diclofenac tablets remain available by prescription, and Voltaren Arthritis Pain Gel is available over the counter. Voltaren became available over the counter in 2020. Here’s what the OTC version treats, how it differs from prescription options, and how to use it safely. Diclofenac comes in several oral, injectable, and topical forms. They contain different diclofenac salts and strengths and are not interchangeable, so check the brand and strength each time you fill your prescription. This article explores what Voltaren is, how it works, where to get it, and how to use it. It also looks at the differences between Voltaren and other painkillers, and possible side effects. Voltaren (diclofenac) is used to treat symptoms of pain associated with rheumatoid arthritis, osteoarthritis, ankylosing spondylitis, dysmenorrhea, and mild-to-moderate pain. Voltaren tablets are prescription-only in the US, but the OTC gel is available now. Learn the difference, safety limits, and how to get diclofenac fast and legally.