Diclofenac sodium is an NSAID (nonsteroidal anti-inflammatory drug). NSAIDs block substances that cause pain and inflammation. Diclofenac relieves symptoms of arthritis and ankylosing spondylitis. It can also help with other forms of pain, such as migraine. The brand name is Voltaren.
Sarah Lewis is a pharmacist and a medical writer with over 25 years of experience in various areas of pharmacy practice. Sarah holds a Bachelor of Science in Pharmacy degree from West Virginia University and a Doctor of Pharmacy degree from Massachusetts College of Pharmacy. She completed Pharmacy Practice Residency training at the University of Pittsburgh/VA Pittsburgh Healthcare System.