The Commission's investigation is continuing and is expected to be completed in early 2016. Its concerns are focused on representations made on packaging, and are not about the safety of the product.
In a statement, Nurofen NZ said it has been working closely with the Commission.
It would now include additional information on its specific-pain packaging.
"These changes will not impact availability and Nurofen specific-pain products will remain on shelf with the additional information introduced over the next three months.
"Nurofen specific-pain products were launched to help consumers with the navigation of pain-relief options in the grocery environment where the support of a healthcare professional is limited. Nurofen NZ takes this matter seriously and regrets that its packaging may have been misleading, as this was never the intention."
The company said its pain-specific range differs in clinical performance from standard ibuprofen.
Its specific-pain range contains 342mg ibuprofen lysine which is more soluble and absorbed more quickly in the bloodstream than standard ibuprofen (acid).