85The question whether during the relevant period H2 blockers exercised a significant competitive constraint over PPIs is a complex one which, as stated at paragraph 25 of the Notice on market definition, can be determined on the basis of a range of evidence consisting of various items, often of an empirical nature, the Commission having to take into account all relevant available information. In the present case, the applicants allege a manifest error of assessment by the Commission and focus, in the context of this plea, on a single aspect of the analysis carried out by the Commission in order to define the relevant market, namely they argue that the gradual nature of the increase in sales of PPIs at the expense of H2 blockers constitutes a decisive factor showing that, during the relevant period, H2 blockers must have exercised a significant competitive constraint over PPIs.
Source: EUR-Lex, © European Union, 1998-2026. Reuse authorised under Decision 2011/833/EU.