Case C-308/11: Judgment of the Court (Fifth Chamber) of 6 September 2012 (reference for a preliminary ruling from the Oberlandesgericht Frankfurt am Main — Germany) — Chemische Fabrik Kreussler & Co. GmbH v Sunstar Deutschland GmbH, formerly John O. Butler GmbH (Directive 2001/83/EC — Medicinal products for human use — Article 1(2)(b) — Meaning of ‘medicinal product by function’ — Definition of the term ‘pharmacological action’ )