Both Advil and Nurofen contain the same active ingredient, ibuprofen. Ibuprofen belongs to the class of medicines known as non-steroidal anti-inflammatory drugs (NSAIDs).
NSAIDs are commonly used to manage pain and inflammation (swelling and redness) associated with some common types of musculoskeletal disorders and treat non-inflammatory conditions such as migraine and headache, and to reduce fever.