Which condition is etanercept primarily prescribed to treat?

Etanercept is primarily prescribed to treat rheumatoid arthritis, a chronic inflammatory disorder that affects the joints and can lead to joint damage and disability. It is classified as a biologic disease-modifying antirheumatic drug (DMARD) that works by inhibiting a protein called tumor necrosis factor (TNF), which plays a critical role in the inflammatory processes associated with rheumatoid arthritis. By reducing inflammation and preventing joint damage, etanercept helps to alleviate pain and improve function and quality of life for those affected by this condition.

Rheumatoid arthritis is distinct from other conditions such as osteoarthritis, which is a degenerative joint disease, and diabetes mellitus, which is a metabolic disorder. Infective endocarditis is an infection of the inner lining of the heart chambers and valves, which is not treated with etanercept. Thus, while there are medications available for various conditions mentioned in the options, etanercept’s primary role centers specifically around managing rheumatoid arthritis.