Adalimumab is a medication used to treat various autoimmune conditions, including rheumatoid arthritis, psoriasis, and Crohn's disease. It works by blocking a protein called tumor necrosis factor-alpha (TNF-alpha), which plays a key role in inflammation. By inhibiting this protein, Adalimumab helps reduce inflammation and alleviate symptoms associated with these diseases. Administered via injection, Adalimumab is typically prescribed for patients who have not responded well to other treatments. Common side effects may include injection site reactions, headaches, and increased risk of infections. Regular monitoring by a healthcare provider is essential to ensure safety and effectiveness during treatment.