Sulindac is a nonsteroidal anti-inflammatory drug used to relieve pain, swelling, and inflammation caused by a variety of conditions. There are several synonyms for Sulindac, including Clinoril, Aflusil, Gaposil, and Sulinda. These synonyms refer to the generic name of Sulindac and are used interchangeably by healthcare professionals. Sulindac belongs to the class of drugs known as NSAIDs, which work by blocking the production of chemicals in the body that cause inflammation and pain. The use of Sulindac is usually prescribed by a doctor for a specific medical condition, and patients are advised to follow their doctor's instructions carefully concerning the use of this medication.