Key takeaways
Enbrel (etanercept) and Trexall (methotrexate) are both used to treat rheumatoid arthritis (RA) and other autoimmune conditions, but they have some key differences. Enbrel is a biologic DMARD that you inject under the skin, while Trexall is an antimetabolite that you take by mouth. Enbrel works by blocking a protein called tumore necrosis factor (TNF) to reduce inflammation, whereas Trexall's exact mechanism for treating non-cancer conditions is not fully understood, though it is known to suppress the immune system. Enbrel is available as rand-name and biosimilar products, but it can be expensive. Trexall is available in generic form, making it more affordable. Enbrel is typically taken once a week, but Trexall's dosing can vary depending on the condition being treated. Both medications can increase your risk of infections, but Trexall also has a higher risk of causing liver damage and other serious side effects. Additionally, Enbrel is not recommended for people with a history of hepatitis B, while Trexall should be avoided during pregnancy for non-cancer conditions.
