What is ibuprofen?

Ibuprofen is in a class of drugs called nonsteroidal anti-inflammatory drugs (NSAID) that has been relieving pain for quite a while. In fact, the first clinical trials of ibuprofen began in February 1966 and over 30 years of clinical studies prove that ibuprofen, the pain reliever in Advil® PM, is effective on pain.
NSAIDs, nonsteroidal anti-inflammatory drugs, are a group of chemical compounds that often are chemically unrelated but share therapeutic actions such as analgesic (pain-relieving) and antipyretic (fever-reducing) effects. Ibuprofen is just one drug in the NSAID class.