Rajah S M, Crow M J, Penny A F, Ahmad R, Watson D A
Br J Clin Pharmacol. 1977 Apr;4(2):129-33. doi: 10.1111/j.1365-2125.1977.tb00683.x.
1 The effect on platelet functions of dipyridamole (a pyrimido-pyrimidine compound) was compared with a control group of patients taking warfarin. 2 Adhesion, aggregation and platelet factor 4 availability showed a significant decrease in the dypyridamole group. 3 Aggregation and platelet factor 4 showed a significant correlation with blood dipyridamole level. 4 Adhesion, aggregation and platelet factor 4 were reduced below the lower limit of normal at blood dipyridamole levels above 3.5 micronmol/1.