Enbrel belongs to the class of drugs known as tumor necrosis factor (TNF) inhibitors. These products work by blocking the activity of TNF-alpha, a chemical known to play a role in certain immune system reactions, namely, inflammation, swelling, and joint damage, which are typical symptoms of the conditions listed.
Because it blocks TNF-alpha, Enbrel is effective at relieving these and other symptoms, and in some cases, may even prevent the associated joint damage from becoming worse. However, this drug is not appropriate for everyone, and should only be given to children in certain cases.
(To learn more about this drug, click Enbrel Uses. This article describes in more detail how this medication works, other conditions it can treat, when children can use it, and possible off-label uses.)