Nurofen Back Pain Sustained Release Capsules For back pain sufferers Nurofen Back Pain Sustained Release Capsules help give effective, powerful lasting relief. They've been specifically designed to slowly release the active ingredient, ibuprofen, at the source of your pain. Nurofen Back Pain Sustained Release Capsules provide effective 12 hour relief. Ingredients The active ingredient is ibuprofen (300mg). The other ingredients are sucrose & maize starch microgranules, polymethacrylates & methacrylate/acrylate copolymers, povidone, talc, silicone dioxide. The capsule shell contains gelatine & iron oxide ink. Directions Adults & children ages 12 years & over: Take One or two capsules twice daily. Do not suck of chew capsules. Do not take more than four capsules in 24 hours. Allow at least 8 hours between doses. Children under 12: Do not use.