Methotrexate is a medication that can be given for autoimmune disease in which a patient has inflammation in the body. Examples of inflammatory diseases include psoriasis, Crohn's disease and rheumatoid arthritis, also known as rheumatoid arthritis.

In this Divi, an animation explains how methotrexate inhibits the immune system, reducing inflammation. In addition, the Divi also discusses the associated lifestyle rules.