That ingredient is sugar. Read more: Lies Your Doctor Knows You're Telling In ibuprofen capsules, tablets, or caplets, you may see sucrose listed on the ingredients label (per Drugs.com).
With respect to the formulation of the drug, this comprises: release of the active ingredient ... profiles for sugar-coated tablets, soft gelatin capsules and ibuprofen lysinate tablets, this ...
In comparison with standard ibuprofen tablet formulations, which contain the active ingredient as the free acid, liquid formulations or faster dissolving ibuprofen salts (e.g. lysine or arginine ...