Fig. 5. Individual time course of maximum intensity of whole blood platelet aggregation (Imax, Ω). Inducer: 2.5 μm adenosine diphosphate (ADP) (  A ), 1 μg/ml collagen (  B ), or 400 μm arachidonic acid (  C ). Treatment: single dose of  S (+)-ibuprofen (dexibuprofen, 400 mg). Sample: healthy volunteers (n = 12).  Dashed lines correspond to the range of the maximum intensity of platelet aggregation before the drug was taken. Each  solid line represents a different volunteer.