Remicade is a medication used to treat autoimmune diseases such as Crohn's disease, rheumatoid arthritis, and ulcerative colitis. Remicade works by blocking the activity of a protein in the body that causes inflammation. Some synonyms for Remicade include infliximab, Abitrexate, and Inflectra. These drugs work similarly to Remicade and are used to treat the same conditions. Biosimilars to Remicade also exist, such as Inflectra and Renflexis, which are made from the same protein but are not identical to Remicade. While these medications have similar effects, it is important to consult with a healthcare professional before switching medications or starting any new treatments.