Indocin is a non-steroidal anti-inflammatory drug that is used to lessen the pain and also reduce inflammation. Indocinis used to treat diseases like arthritis, osteoarthritis and many others.Indocinhas the same functions like ibuprofen. Indocin operates by lowering the level of hormones that causes inflammation and pain in our bodies. However, Indocin can increase risks for cardiac attack and may also result in poor improper functioning of the circulatory system. Patients undergoing heart surgery are encouraged not to take this drug before or after the process.