Advil Dual Action Back Pain Caplets are formulated with 250mg ibuprofen that targets pain caused by inflammation, and 500mg acetaminophen that blocks pain signals. 72-ct of Advil Dual Action Back Pain Caplets, 250mg Ibuprofen and 500mg Acetaminophen, Provide 8 Hours of Back Pain Relief. Pain relief pills fight back pain 2 ways; acetaminophen blocks pain signals and ibuprofen targets pain caused by inflammation. Each caplet contains acetaminophen and ibuprofen for back pain relief; back pain medication also provides headache, toothache, menstrual cramp, muscle pain and lower back pain relief. Ibuprofen and acetaminophen caplets that provide back pain relief for 8 hours. Pain pills that relieve pain in two ways, providing powerful relief with a lower maximum daily dose of each medication.